Importing fbx with armature resulting in crash

Tools - Import - Jan 20, 2020

Importing an fbx file with armature on MAC results in crash Tested: 4.23.1 CL#9631420, 4.25 CL#10889200 ...

Streaming of array textures with mips results in nearest mips being black

Rendering - Jan 20, 2020

The issue is discussed in this UDN:https://udn.unrealengine.com/questions/544210/crash-starting-up-in.html Key quote from UDN thread is:"Also, having made a texture array with 190 entries, it seems ...

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

Gameplay - Blueprint - Jan 18, 2020

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 ...

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

Physics - Clothing - Jan 17, 2020

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

Engine - Content - Jan 17, 2020

**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

Physics - Clothing - Jan 17, 2020

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

XR - Jan 17, 2020

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

Networking - Replay - Jan 16, 2020

"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

Physics - Jan 16, 2020

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