Unreal Engine Issues

Anim Curve Data Does Not Appear in Montages When Using Animation Modifier, MotionExtractorModifier

Occurs 5/5 times Regression does not occur as the MotionExtractorModifier appears to be new with UE5.  Curve data is not displayed in an Animation Montage when Animation Modifier, MotionExtractorM ...

UWorld::GetNetMode returns incorrect value during UGameInstance::StartPlayInEditorGameInstance

During PIE instance initialization, there seems to be a window during which UWorld::GetNetMode will not return the expected value: before the instance's NetDriver has been created but after UGameIns ...

Android sessions do not appear in Session Frontend

GPU Particle Collision causes shaking when set to bounce with low resilience.

A particle emitter with GPU sprites on certain settings will shake violently as they collide with the ground. This requires there to be a strong Const Acceleration module and Collision with low resi ...

Material ParticleRandom node doesn't have proper value returned in specific case

Crash on Mac when adding Convex Collision to a mesh converted from a brush

This is one of the top Mac crashes occurring in 4.16. Caused by adding Auto Convex Collision to a mesh converted from a brush. Does not occur on Windows. User DescriptionsI was trying to add a conv ...

[CrashReport] DerivedDataCache!TArray<unsigned char,FDefaultAllocator>::ResizeForCopy

This is an infrequent crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. It seems to be a different issue, but the callstack sh ...

'Autosized' SWindow with `.AutoHeight()` elements has unwanted white space

Heavily discussed and diagnosed in this thread: [Link Removed] [Link Removed] narrowed down the cause: It's the calculation inside the SWindow that is wrong, sometime. It adds SWindowDefs::Default ...

MATERIAL_SHADINGMODEL_TOON macro is not propagated to the substrate tool BSDF material on a DDC hit

On a DDC hit, the SubstrateMaterialBsdfFeatures variable restored into MaterialCompilationOutput is not copied into SubstrateTranslatorData.SubstrateMaterialBsdfFeatures, which is referenced by the ...

Collision outcome is different between PIE and Mobile Preview/Packaged Project.

When playing the user's project in editor vs Packaged, there has been different results for the enemies collision. When playing in PIE, you are able to fly through the enemies with no issues. When p ...