Unreal Engine Issues

[CrashReport] UE4Editor_MaterialEditor!FMaterialEditor::OnCanPromoteToParameter()

This is a common crash in the 4.16 release. It seems related to creating a parameter in the Material Editor, however users have not provided any descriptions so additional information is not current ...

Crash resizing Cascade window

Crash occurs when the user quickly resizes the Cascade window. I was able to reproduce this regularly last week, but I'm not able to do so now. This is related to [Link Removed]. ...

4.16.1 Android Development builds crash on start with "unfortunately [App] has stopped"

Cannot mark asset folders in plugin to always be cooked

No way to mark asset folders in plugin to always be cooked. Using the browse-for-folder button will reject them for not being in the project's content folder. It looks like the code assumes them to ...

Add button in Override Materials property is not responding.

Add button in Override Materials property is not responding in Skeletal Mesh > Rendering section in detail panel. This is not responding from 4.15 and above. ...

Hot Reload picks up outdated Blueprint Function Library

Making changes that can potentially alter the CDO or other aspects of a UBlueprintFunctionLibrary can cause BP compilation issues with cryptic messages. This is caused by the Owning Blueprint (i.e. ...

Alembic Animation Sync issues when playing/rendering in sequencer

Alembic Animation Sync issues when playing/rendering in sequencer ...

Noticeable Audio Pop when Opening a New Level after Spawning and Playing a Sound with Volume Multiplayer at 0.0

A licensee is reporting an audible pop when transitioning between levels with a sound spawned and playing at volume multiplier of 0.0. The original report was a discrepancy between the old audio en ...

Material instances with static parameters inline their shadermap even if it is identical to the parent, wasting disk space and load time

MI's with StaticParameters always inline their shadermap, even if it has the same FMaterialShaderMapId as the parent. We should skip inlining it in that case, saving cooked disk space and cooked bu ...

Error launching onto HTML5: "Expression (0) failed in \Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:428!"

This is launching on to Firefox 53.0.2 (64-bit) and also occurs in Main. Error message:uncaught exception: ASM_CONSTS<@blob:http://localhost:53501/4354ee7b-de4a-419b-b0bc-5d58ff557ed2:1:38655 _emsc ...