Unreal Engine Issues

UE-41879

Low Frequency Crash when rendering a movie in Sequencer

Low Frequency Crash when rendering a movie in Sequencer

Description

Note
This is a low frequency 1/3 times attempted. I could not accurately reproduce this crash.

Based on crash reporter, this never happened in 4.14 so this is a regression

Steps to Reproduce
  1. Open QAGame
  2. Open QA-Sequencer Level (Maps > Tools )
  3. Open Master Sequence in Sequencer
  4. Select the Movie Render button
  5. Keep default Capture settings
    • Frame Rate 30
    • Resolution 1920 x 1080
    • Output directory Desktop

Result: The editor crashes before the scene is completely rendered

Callstack
UE4Editor_MovieSceneCapture!<lambda_23dcd946a0f7c2fd36536b71607a6773>::operator() framegrabber.cpp:93 
UE4Editor_MovieSceneCapture!TGraphTask<`FViewportSurfaceReader::ResolveRenderTarget'::`2'::EURCMacro_ResolveCaptureFrameTexture>::ExecuteTask() taskgraphinterfaces.h:883 
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() taskgraph.cpp:954 
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() taskgraph.cpp:701 
UE4Editor_RenderCore!RenderingThreadMain() renderingthread.cpp:325 
UE4Editor_RenderCore!FRenderingThread::Run() renderingthread.cpp:459 
UE4Editor_Core!FRunnableThreadWin::Run() windowsrunnablethread.cpp:76

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Fixed
ComponentUE - Anim - Sequencer
Affects Versions4.15, 4.16
Target Fix4.17
Fix Commit3473670
Main Commit3499771
CreatedFeb 10, 2017
ResolvedJun 9, 2017
UpdatedJan 8, 2019
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