Unreal Engine Issues

Nativized UMG widgets with animation tracks can sometimes assert with async loading enabled.

The incorrect use of NewObject() to instance nested class-owned subobjects will force StaticAllocateObject() to reconstruct the instance that was already constructed by the outer class ctor in nativ ...

Latent action not initialized with the proper desired time

UE4 viewport stutters when zoom in to closest point

When zooming in as much as possible in UE4's viewport, I notice a strange stutter almost as if the viewport is hitting a limit.  Please watch the attached screencapture. [Link Removed] ...

Cloth Simulation Doesn't Work When Clothing Data Is Applied Before Being Painted

When clothing data is applied before painting the influence on the section the cloth doesn't simulate. I tested this using the Paragion: Twinblast actionhero skeletal mesh asset. Found in 4.24.1 C ...

Typo in Content description field for Flipbook Material Expression Function Output

**Typo in Content description field for Flipbook Material Expression Function Output ...

Engine Crashes When Trying To Reimport Skeletal Mesh For One That Has No Clothing Data

The engine crashes when trying to reimport a skeletal mesh that has no clothing data. This seems related to https://jira.it.epicgames.net/browse/UE-86948. Found in 4.24.1 CL#10757647 Reproduced in ...

Motion Controller Components Don't Track Motion Controllers

The motion controller component doesn't track motion controllers correctly. This worked in 4.23. If you create a VR template project and follow the repro steps this issue doesn't occur. This was t ...

Incorrect level sequence playback in replay with sequence start time != 0

"Our dynamic duplicate in-memory replays broke when an artist put an ULevelSequencePlayer in one of the dynamic source level levels. The UMovieSceneSequencePlayer base class has PostNetReceive call ...

USkeletalMeshComponent::ShouldRunEndPhysicsTick only checks if root body is awake

USkeletalMeshComponent::ShouldRunEndPhysicsTick calls UPrimitiveComponent::RigidBodyIsAwake(), which only checks the root body instance. Instead it should call USkeletalMeshComponent::IsAnyRigidBody ...

Clothing Data Cannot Be Created If The Old Data Was Deleted While Applied

When you delete clothing data on a skeletal mesh before removing it you cannot apply new clothing data. The engine still thinks that there is clothing data is applied. I tested using the Paragon: Tw ...