Unreal Engine Issues and Bug Tracker (UE-94430)

Description
It seems like VrayBlend materials are crashing the Engine when importing them with Datasmith.
This is a regression from 4.24.3 (CL-11590370) where the file imported successfully.
This was reported and tested in 4.25.1 (CL-13594126) and reproduced in Main 4.26 (CL-13653677)
Steps to Reproduce
Download and extract the attached files
Open the UE4 Editor and create a Blank Datasmith enabled project
Import the udatasmith file
Results: The Editor crashes during or after import
Expected: The file is imported successfully
Callstack
[2020.06.16-21.59.47:992][120]LogWindows: Error: === Critical error: ===
[2020.06.16-21.59.47:992][120]LogWindows: Error: 
[2020.06.16-21.59.47:992][120]LogWindows: Error: Assertion failed: TextureReferenceIndex != INDEX_NONE [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Engine/Private/Materials/HLSLMaterialTranslator.cpp] [Line: 4957] 
[2020.06.16-21.59.47:992][120]LogWindows: Error: Material expression called Compiler->TextureParameter() without implementing UMaterialExpression::GetReferencedTexture properly
[2020.06.16-21.59.47:992][120]LogWindows: Error: 
[2020.06.16-21.59.47:992][120]LogWindows: Error: 
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffd1dcea799 KERNELBASE.dll!UnknownFunction []
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcba22eb46 UE4Editor-Core.dll!ReportAssert() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsPlatformCrashContext.cpp:1537]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcba231f28 UE4Editor-Core.dll!FWindowsErrorOutputDevice::Serialize() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsErrorOutputDevice.cpp:78]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb9fbe53d UE4Editor-Core.dll!FOutputDevice::LogfImpl() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Misc\OutputDevice.cpp:61]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb9f497b5 UE4Editor-Core.dll!AssertFailedImplV() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:100]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb9f4baf0 UE4Editor-Core.dll!FDebug::CheckVerifyFailedImpl() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:450]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72c65c5 UE4Editor-Engine.dll!FHLSLMaterialTranslator::TextureParameter() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:4957]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb730e009 UE4Editor-Engine.dll!UMaterialExpressionTextureObjectParameter::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:2900]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73089d1 UE4Editor-Engine.dll!UMaterialExpressionFunctionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:13634]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb730e1b4 UE4Editor-Engine.dll!UMaterialExpressionTextureSample::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:1763]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb7305b3c UE4Editor-Engine.dll!UMaterialExpressionAppendVector::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5356]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb7307eac UE4Editor-Engine.dll!UMaterialExpressionDotProduct::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:4259]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb730dad0 UE4Editor-Engine.dll!UMaterialExpressionSubtract::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:3647]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb730a390 UE4Editor-Engine.dll!UMaterialExpressionMultiply::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:3542]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb7305b49 UE4Editor-Engine.dll!UMaterialExpressionAppendVector::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5357]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb7306ebc UE4Editor-Engine.dll!UMaterialExpressionCrossProduct::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:4309]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb7309e93 UE4Editor-Engine.dll!UMaterialExpressionMaterialFunctionCall::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:12975]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73089d1 UE4Editor-Engine.dll!UMaterialExpressionFunctionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:13634]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb7309376 UE4Editor-Engine.dll!UMaterialExpressionLinearInterpolate::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:3705]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:992][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309e93 UE4Editor-Engine.dll!UMaterialExpressionMaterialFunctionCall::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:12975]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73096a6 UE4Editor-Engine.dll!UMaterialExpressionMakeMaterialAttributes::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5429]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309e93 UE4Editor-Engine.dll!UMaterialExpressionMaterialFunctionCall::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:12975]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73089d1 UE4Editor-Engine.dll!UMaterialExpressionFunctionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:13634]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb739b265 UE4Editor-Engine.dll!FMaterialAttributesInput::CompileWithDefault() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:495]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7306388 UE4Editor-Engine.dll!UMaterialExpressionBreakMaterialAttributes::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5631]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309376 UE4Editor-Engine.dll!UMaterialExpressionLinearInterpolate::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:3705]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73096a6 UE4Editor-Engine.dll!UMaterialExpressionMakeMaterialAttributes::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5429]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309e93 UE4Editor-Engine.dll!UMaterialExpressionMaterialFunctionCall::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:12975]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309e93 UE4Editor-Engine.dll!UMaterialExpressionMaterialFunctionCall::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:12975]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73089d1 UE4Editor-Engine.dll!UMaterialExpressionFunctionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:13634]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb739b265 UE4Editor-Engine.dll!FMaterialAttributesInput::CompileWithDefault() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:495]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7306388 UE4Editor-Engine.dll!UMaterialExpressionBreakMaterialAttributes::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5631]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309376 UE4Editor-Engine.dll!UMaterialExpressionLinearInterpolate::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:3705]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73096a6 UE4Editor-Engine.dll!UMaterialExpressionMakeMaterialAttributes::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:5429]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb7309e93 UE4Editor-Engine.dll!UMaterialExpressionMaterialFunctionCall::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialExpressions.cpp:12975]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb72949df UE4Editor-Engine.dll!FHLSLMaterialTranslator::CallExpression() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp:2628]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb73988aa UE4Editor-Engine.dll!FExpressionInput::Compile() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp:243]
[2020.06.16-21.59.47:993][120]LogWindows: Error: [Callstack] 0x00007ffcb739b265 UE4Editor-Engine.dll!FMaterialAttributesInput::CompileWithDefault()
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Fixed
Component	UE - Editor - Content Pipeline - Datasmith - Importer
Affects Versions	4.25.1, 4.26
Target Fix	4.25.2
Fix Commit	13718633
Main Commit	14151001
Release Commit	13718633
Created	Jun 16, 2020
Resolved	Jun 19, 2020
Updated	Jan 12, 2021
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UE-94430

Unreal Editor crash on Datasmith import with VrayBlend Materials

Unreal Editor crash on Datasmith import with VrayBlend Materials

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