Unreal Engine Issues

[CrashReport] UE4Editor_D3D11RHI!VerifyD3D11Result() [d3d11util.cpp:200]

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Fatal error: [Link Removed] [Line: 200] SwapChain->ResizeBuffers(1,SizeX,SizeY ...

Adding "_API" specifier to FMovieSceneTrackEditor results in linker errors

Unable to add API specifier to FMovieSceneTrackEditor, results in compile errors (pasted in the callstack field) ...

[CrashReport] UE4Editor_Renderer!FSceneRenderTargets::GetGBufferResourcesUniformBuffer() [scenerendertargets.h:408]

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: IsValidRef(GBuff ...

Crash when force deleting blueprints that reference each other

Editor crashes when trying to force delete assets that reference each other. Blueprint 'A' contains an Actor Component of Blueprint 'B'. Crash will occur when trying to force delete both 'A' and 'B' ...

FPackedRGBA16N is divide by 32768 twice in NEON/FPU

[CrashReport] Assertion on in UMaterialInterface::InitDefaultMaterials()

This is a common Mac crash occurring in the 4.16.1 release. I have not found any evidence of it occurring on Windows. The callstack closely matches [Link Removed], which was briefly experienced by ...

Editor Crashes When Attempting to Create/Open a Blueprint While 'Show Friendly Variable Names' is False

When the 'Show Friendly Variable Names' option is set to false in Editor preferences, attempting to create (once you press 'Enter' to accept the new Blueprint name) or open a Blueprint causes the ed ...

Editor crashes when a hot reload is performed on a project that contains a custom User Defined Struct code class

Adding a custom User Defined Struct code class to a project causes the Editor to crash whenever a hot reload is performed on that project. Removing the custom User Defined Struct class allows hot re ...

EQS Generators named "NewBlueprint" cause errors and crash

Naming an EnvQueryGenerator_BlueprintBase derived BP "NewBlueprint" and deleting it causes new custom generators to not appear in the EQS. This can also lead to a crash when searching for the new ge ...

Editor crashed on opening level blueprint

I've been unable to reproduce this issue. Once only occurrence so far. I did some other things inside the level in between these steps like pressing play and copying, rotating, deleting objects in ...