Unreal Engine Issues

UE-90786

Warp Utils plugin crashes on Editor restart

Warp Utils plugin crashes on Editor restart

Description

Enabling the Warp Utils plugin and restarting the Editor causes it to crash. This is a regression from 4.24.3 (CL-11590370).

This was reported and tested in 4.25 Preview 2 (CL-12055273) and reproduced in 4.26 (CL-12192349)

Steps to Reproduce
  1. Open the UE4 Editor and create a Blank project
  2. Go to Plugins and enable Warp Utils
  3. Restart the Editor

Results: The Editor crashes

Expected: The Editor restarts with the plugin enabled

Callstack
[2020.03.17-19.19.30:341][  0]LogWindows: Error: === Critical error: ===
[2020.03.17-19.19.30:341][  0]LogWindows: Error: 
[2020.03.17-19.19.30:341][  0]LogWindows: Error: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Engine/Private/ShaderCompiler/ShaderCompiler.cpp] [Line: 4959] 
[2020.03.17-19.19.30:341][  0]LogWindows: Error: Failed to compile global shader FPFMExporterPS  .  Enable 'r.ShaderDevelopmentMode' in ConsoleVariables.ini for retries.
[2020.03.17-19.19.30:341][  0]LogWindows: Error: 
[2020.03.17-19.19.30:342][  0]LogWindows: Error: 
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff9d81c9159 KERNELBASE.dll!UnknownFunction []
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff97d24b1f6 UE4Editor-Core.dll!ReportAssert() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsPlatformCrashContext.cpp:1388]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff97d24e5d8 UE4Editor-Core.dll!FWindowsErrorOutputDevice::Serialize() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsErrorOutputDevice.cpp:78]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff97cfdca5d UE4Editor-Core.dll!FOutputDevice::LogfImpl() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Core\Private\Misc\OutputDevice.cpp:61]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff97ec684e6 UE4Editor-Engine.dll!ProcessCompiledGlobalShaders() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\ShaderCompiler\ShaderCompiler.cpp:4979]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff97ec6a257 UE4Editor-Engine.dll!FShaderCompilingManager::ProcessCompiledShaderMaps() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\ShaderCompiler\ShaderCompiler.cpp:2461]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff97ec4eb94 UE4Editor-Engine.dll!FShaderCompilingManager::FinishCompilation() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Engine\Private\ShaderCompiler\ShaderCompiler.cpp:2853]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff9664207ae UE4Editor-D3D11RHI.dll!FD3D11DynamicRHI::PostInit() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\Windows\WindowsD3D11Device.cpp:1047]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff679fa2189 UE4Editor.exe!FEngineLoop::PreInitPostStartupScreen() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:3106]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff679f9b82c UE4Editor.exe!GuardedMain() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:127]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff679f9bb9a UE4Editor.exe!GuardedMainWrapper() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff679fae039 UE4Editor.exe!WinMain() [D:\Build\++UE4+Licensee\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:266]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff679fb113a UE4Editor.exe!__scrt_common_main_seh() [d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff9dbae7974 KERNEL32.DLL!UnknownFunction []
[2020.03.17-19.19.30:342][  0]LogWindows: Error: [Callstack] 0x00007ff9dbd5a261 ntdll.dll!UnknownFunction []
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Fixed
ComponentUE - Virtual Production
Affects Versions4.25, 4.26
Target Fix4.25
Fix Commit12237676
Main Commit12238549
Release Commit12237676
CreatedMar 17, 2020
ResolvedMar 18, 2020
UpdatedJul 30, 2020
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