Unreal Engine Issues

GAS PlayMontageAndWait: Server applies root motion with wrong scale at last montage tick

User reported: when playing an AnimMontage via GameplayAbility with the PlayMontageAndWait ability task that has a custom value for AnimRootMotionTranslationScale, (dedicated) servers can apply an i ...

Data Layers: GetDataLayerInstanceFromAssetName differs between editor and non-editor

From licensee: The function AWorldDataLayers::GetDataLayerInstanceFromAssetName() uses different names in #WITH_EDITOR and without editor builds: #WITH_EDITOR config calls DataLayerInstance->GetDa ...

Resizing game window is very slow on Mac

Reported here [Link Removed] Also see attached screen capture. Could be that we do not pause rendering when resizing. ...

Closing Twinmotion during a video export leads to crash

Camera Shake can apply a new post process material every tick when post process material has "Is Blendable" disabled

In the repro project the player camera has a post process material that slightly darkens the frame by subtracting 0.01 from the final color. When a camera animation based on a camera sequence is pla ...

[Audio Modulation] - Ensure is thrown when attempting to modulate a Source Effect at runtime

Does *not* occur in editor. Only in standalone and runtime. Occurs when modulating Chorus or Bit Depth Also occurs in 5.2 and 5.3. I also noticed the test with this is supposed to set the chorus e ...

Character sliding down a surface can prematurely land before reaching a walkable floor

Under some circumstances, a character falling and sliding along a sloped surface may get hung up near the bottom of the surface before actually landing on the floor.  This seems to occur when slidin ...

Ledge Movement Stuck (CheckLedgeDirection is always returning true)

The issue appears to that CheckLedgeDirection almost always returns true, which returns the leftward side step. This is correct for the leftward direction, but is not valid for the rightward directi ...

FSkeletalMeshRenderData::Cache doesn't store and restore versions

A licensee was trying to extend the FSkelMeshSection, FSkelMeshRenderSection and USkeletalMesh serialisers with their licensee version number and found that the FSkeletalMeshRenderData::Cache functi ...

[AI] BTService_RunEQS has rare crash during OnQueryFinished

The crash log shows Error: Ensure condition failed: MyMemory->RequestID != INDEX_NONE [UE5\Engine\Source\Runtime\AIModule\Private\BehaviorTree\Services\BTService_RunEQS.cpp][Line: 93]. Other logs ha ...