Unreal Engine Issues

Performance decreases with the number of morph targets

Performance decreases quite a bit on characters with large number of morph targets, as soon as even one target is active.  ...

ShouldOnlyTriggerLastActionInChord only works for one action bound to a chord instead of any number

Anim Graph will hang if the Draw Debug Sphere and Set node are connected and compiled

anim blueprint hangs when compiled. Probably a cyclic issue when compiling. A workaround is to add a delay of any time between the set node and the Draw Debug Sphere node. Repros in the following v ...

Level Sequences- Overriding binding of a spawnable mid-playback doesn't despawn spawnable

Reported by user in UDN. Overriding the binding of a spawnable actor track while the sequence is playing will result in 2 visual copies of the actor, the original spawnable, which doesn't get destr ...

Crash in reinstancing after removing a variable from a component and compiling

Rect Light Texture does not unload during level streaming in packaged game

Niagara Skeletal Mesh DI Component Tag filter doesn't copy over when copying DI

UNiagaraDataInterfaceSkeletalMesh::CopyToInternal and UNiagaraDataInterfaceSkeletalMesh::Equals do not account for the component tags, so the tags array will be empty when the DI is copied. ...

Shader Crash with Nanite in UE::RHICore::ValidateStaticUniformBuffer

This appears to be a general crash when a SingleLayerWater material is assigned to a Nanite Mesh. ...

EditorCube added to the scene with a Geometry Script will have reversed normals

The work around is to use the modeling mode normal tool to regenerate normals. This appears to mainly occur on any cubes added by the "Copy Mesh from Static Mesh" Regression tested in 5.0.3 at CL 2 ...

Creating "Level Sequence with Shot" with spawnable cameras creates duplicate cameras

This is not a regression as it does occur in //UE5/Release-5.1 @ CL 23901901 Repro Rate: 3/3 times ...