If the user rotates a background blur widget and then tries to resize it, this will cause the editor to crash
Note: Widget cannot be opened if the widget is saved in this state.
Expected: The widget would increase in size
Result: The editor crashes
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build\++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 633] Array index out of bounds: 0 from an array of size 0 UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349] UE4Editor_SlateRHIRenderer!FSlatePostProcessResource::GetRenderTarget() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slaterhirenderer\private\slatepostprocessresource.h:21] UE4Editor_SlateRHIRenderer!FSlatePostProcessor::DownsampleRect() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slaterhirenderer\private\slatepostprocessor.cpp:217] UE4Editor_SlateRHIRenderer!FSlatePostProcessor::BlurRect() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slaterhirenderer\private\slatepostprocessor.cpp:59] UE4Editor_SlateRHIRenderer!FSlateRHIRenderingPolicy::DrawElements() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderingpolicy.cpp:665] UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindow_RenderThread() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:749] UE4Editor_SlateRHIRenderer!TGraphTask<`FSlateRHIRenderer::DrawWindows_Private'::`35'::EURCMacro_SlateDrawWindowsCommand>::ExecuteTask() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:883] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:954] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:701] UE4Editor_RenderCore!RenderingThreadMain() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:325] UE4Editor_RenderCore!FRenderingThread::Run() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:459] UE4Editor_Core!FRunnableThreadWin::Run() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-42037 in the post.
| 0 |
| Component | UE - Editor - UI Systems |
|---|---|
| Affects Versions | 4.15 |
| Target Fix | 4.16 |
| Fix Commit | 3308887 |
|---|---|
| Main Commit | 3341914 |
| Created | Feb 16, 2017 |
|---|---|
| Resolved | Feb 17, 2017 |
| Updated | Apr 27, 2018 |