Description

Per Licensee:

Hello, We are migrating our project from 4.18 to 4.19.2 and we are encountering various crashes while opening our material and material functions. I'm adding a simple test case here. Just tested on vanilla 4.19.2 and it crashes just like in our customized build of unreal engine. link text

To repro one of the crash (maybe they are all related) just open layer_simple material function. The issue seems to be related to vertex interpolator node and the new ParameterInfo structure. Is this issue known? This is quite critical for us at the moment.. we need to migrate our next project as soon as possible. Thank you very much

Steps to Reproduce
  1. Open attached Project
  2. Open Content/Test/layer_simple material function

Result: Crash

Callstack

LoginId:77ac66cf4b506a51a458c382c4ec63c2
EpicAccountId:5caf2c99925243e8b9b1bdcc9cd0e6cf

Assertion failed: ParameterOwnerStack.Num() [Link Removed] [Line: 1912]

UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_Engine!FHLSLMaterialTranslator::ScalarParameter() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:2248]
UE4Editor_Engine!UMaterialExpressionScalarParameter::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialexpressions.cpp:6134]
UE4Editor_Engine!FHLSLMaterialTranslator::CallExpression() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:2004]
UE4Editor_Engine!FExpressionInput::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:106]
UE4Editor_Engine!UMaterialExpressionFunctionInput::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialexpressions.cpp:11318]
UE4Editor_Engine!FHLSLMaterialTranslator::CallExpression() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:2004]
UE4Editor_Engine!FExpressionInput::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:106]
UE4Editor_Engine!UMaterialExpressionAppendVector::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialexpressions.cpp:4209]
UE4Editor_Engine!FHLSLMaterialTranslator::CallExpression() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:2004]
UE4Editor_Engine!FExpressionInput::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:106]
UE4Editor_Engine!UMaterialExpressionDivide::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialexpressions.cpp:2497]
UE4Editor_Engine!FHLSLMaterialTranslator::CallExpression() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:2004]
UE4Editor_Engine!FExpressionInput::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:106]
UE4Editor_Engine!UMaterialExpressionAdd::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialexpressions.cpp:2390]
UE4Editor_Engine!FHLSLMaterialTranslator::CallExpression() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:2004]
UE4Editor_Engine!FExpressionInput::Compile() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:106]
UE4Editor_Engine!UMaterialExpressionVertexInterpolator::CompileInput() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialexpressions.cpp:14073]
UE4Editor_Engine!FHLSLMaterialTranslator::GatherCustomVertexInterpolators() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:339]
UE4Editor_Engine!FHLSLMaterialTranslator::GatherCustomVertexInterpolators() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:360]
UE4Editor_Engine!FHLSLMaterialTranslator::Translate() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\hlslmaterialtranslator.h:511]
UE4Editor_Engine!FMaterial::BeginCompileShaderMap() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:1819]
UE4Editor_Engine!FMaterial::CacheShaders() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:1752]
UE4Editor_Engine!FMaterial::CacheShaders() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:1634]
UE4Editor_Engine!UMaterial::CacheShadersForResources() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:2943]
UE4Editor_Engine!UMaterial::CacheResourceShadersForRendering() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:2861]
UE4Editor_Engine!UMaterial::PostEditChangeProperty() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:3945]
UE4Editor_CoreUObject!UObject::PostEditChange() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:333]
UE4Editor_MaterialEditor!FMaterialEditor::UpdatePreviewMaterial() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\materialeditor\private\materialeditor.cpp:1598]
UE4Editor_MaterialEditor!FMaterialEditor::InitMaterialEditor() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\materialeditor\private\materialeditor.cpp:656]
UE4Editor_MaterialEditor!FMaterialEditorModule::CreateMaterialEditor() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\materialeditor\private\materialeditormodule.cpp:222]
UE4Editor_AssetTools!FAssetTypeActions_MaterialFunction::OpenAssetEditor() [d:\build\++ue4+release-4.19+compile\sync\engine\source\developer\assettools\private\assettypeactions\assettypeactions_materialfunction.cpp:65]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:361]
UE4Editor_AssetTools!FAssetTypeActions_Base::AssetsActivated() [d:\build\++ue4+release-4.19+compile\sync\engine\source\developer\assettools\public\assettypeactions_base.h:52]
UE4Editor_ContentBrowser!SContentBrowser::OnAssetsActivated() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\contentbrowser\private\scontentbrowser.cpp:2072]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper<void> __cdecl(TArray<FAssetData,FDefaultAllocator> const & __ptr64,enum EAssetTypeActivationMethod::Type)>::Execute() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:269]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void __cdecl(TArray<FAssetData,FDefaultAllocator> const & __ptr64,enum EAssetTypeActivationMethod::Type)>::ExecuteIfSafe() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:345]
UE4Editor_ContentBrowser!SAssetView::OnListMouseButtonDoubleClick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\contentbrowser\private\sassetview.cpp:3941]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,TTypeWrapper<void> __cdecl(TSharedPtr<FAssetViewItem,0>)>::Execute() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:269]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void __cdecl(TSharedPtr<FAssetViewItem,0>)>::ExecuteIfSafe() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:345]
UE4Editor_ContentBrowser!TBaseDelegate<void,TSharedPtr<FAssetViewItem,0> >::ExecuteIfBound() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:624]
UE4Editor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::Private_OnItemDoubleClicked() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\public\widgets\views\slistview.h:809]
UE4Editor_ContentBrowser!STableRow<TSharedPtr<FAssetViewItem,0> >::OnMouseButtonDoubleClick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\public\widgets\views\stablerow.h:288]
UE4Editor_Slate!<lambda_eeb33fd1b480e3cad58a1531d90d2e14>::operator()() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5872]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_eeb33fd1b480e3cad58a1531d90d2e14> >() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:266]
UE4Editor_Slate!FSlateApplication::RoutePointerDoubleClickEvent() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5870]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonDoubleClickEvent() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5857]
UE4Editor_Slate!FSlateApplication::OnMouseDoubleClick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5833]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1730]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2172]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:889]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:726]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:129]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3263]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:144]
UE4Editor!WinMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:223]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
kernel32
ntdll

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-59531 in the post.

2
Login to Vote

Fixed
ComponentUE - Graphics Features
Affects Versions4.19.24.20
Target Fix4.20
Fix Commit3965567
Main Commit4091785
Release Commit4095966
CreatedMay 23, 2018
ResolvedMay 24, 2018
UpdatedMay 31, 2018
View Jira Issue