Unreal Engine Issues

[CrashReport] Crash on Mac - UE4Editor-SlateCore.dylib!SWindow::IsVisible()

This is a common crash on Mac in the 4.16 release, and has occurred with low frequency since at least 4.11. Users have not provided any descriptions, so additional information is currently unknown. ...

When the async loading thread is enabled the game sometimes crashes trying to construct a Blueprint Class GC token stream

Cooked game crashes during async loading when the engine also has to load another package

Android iterating with Launch On in always recompiles android_native_app_glue.c and UELinkerfixups

Edit shared defaults for multiple blueprints leads to Engine crash.

Changing any value in Edit shared defaults window with multiple blueprint assets leads to Engine crash. This is a regression from 4.16 ...

[CrashReport] Assertion on Mac in FCocoaRunLoopSource

This is a common crash among Mac users in 4.16. It is spread out among many separate CrashGroups, with slight variations in Callstack. Some Example CrashGroups [Link Removed] [Link Removed] [Link ...

[CrashReport] Assertion failed: !IsLoading() in CollectGarbageInternal()

This is a common crash occurring for users in the 4.16 release. It is spread out across many different CrashGroups with slight variations in callstack. Users have not provided any descriptions whe ...

[CrashReport] UE4Editor_Renderer!FMaterialShader::VerifyExpressionAndShaderMaps() [shaderbaseclasses.cpp:148]

This is a common crash occurring in the 4.16 release. It is spread out across many different CrashGroups with slight variations in Callstack. Additional information is not available at this time. ...

Map load stalls in texture streaming code

A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...

Editing ChildActorComponents on a Parent BP can corrupt a Child BP's state.

Editing the Child Actor Class of a Child Actor Component owned by a Parent BP can corrupt the Child BP's state. This seems related to known serialization issues, where changing a Parent's Property ...