Unreal Engine Issues

Ensure occurs when force deleting a BP asset that is still referenced in memory

Upon force deletion of a BP asset still referenced in memory an ensure is hit. ...

Procedural Sound Wave Fails to Play when returning 0 bytes in GeneratePCMData callback

Returning 0 bytes in GeneratePCMData results in the procedural sound wave not continuing to play audio. Instead of returning 0, we need to return an empty buffer if the procedural sound wave doesn't ...

Morph targets unable to find B Material

Morph targets are not changing colors in some instances and just not doing anything in others(1.1 in Content Examples - MorphTargets) The output log is spammed with: LogMaterialParameter: B materia ...

UMG: Sprites don't pick a default size when selected for a brush

Sprites don't adjust the default size of a brush when selected for a UMG brush. ...

Morph target vertex mapping can be wrong with multi material caches

Launch on Mac attempts to load incorrect map for 2D Side Scroller template

Important: To get this to repro 100% of the time a new Blueprint 2D Side Scroller template project must be used. If you close the project, then reopen it the project opens to the correct map. I'm as ...

"Error in Feature pack D:/Release/FeaturePacks/TP_VirtualRealityBP.upack" when opening a project in editor.

The following warning appears in the Output Log when opening any project in editor:LogFeaturePack:Warning: Error in Feature pack C:/Program Files (x86)/Epic Games/4.13/FeaturePacks/TP_VirtualReality ...

Rendering glitch when launching on Android

https://answers.unrealengine.com/questions/462957/rendering-glitch-when-launching-on-android-ue413-p.html I was able to repro it on Nexus5 with Android 5.1.1. ...

User is able to give a Preview Scene Profile the same name as an existing profile

In the Preview Scene Settings, the user is able to give two profiles the same name. While this doesn't result in any issues, it is something that's generally not accepted in the editor and can caus ...

Race condition in USkeletalMeshComponent::TickCloth due to delayable tick function.

USkeletalMeshComponent::TickComponent is run in the PrePhysics tick group. This is the only place where the SkeletalMesh is actually checked to be != nullptr to determine whether or not the TickClot ...