Callback set with AddNativeStateEntryBinding() stops working after ABP compile during PIE

UE - Anim - Runtime - Anim Blueprints - Aug 15, 2024

After compiling the Animation Blueprint (ABP) during Play In Editor (PIE), the callback registered with UAnimInstance::AddNativeStateEntryBinding() in NativeInitializeAnimation() stops functioning a ...

Native gameplay tags in plugins are cleared when reading config files

UE - Gameplay - Aug 14, 2024

When references to Gameplay Tags are loaded, it checks to see if they are already registered. If they are not already registered, it will notice it is invalid and may print a warning depending on th ...

Twinmotion processes may not fully close on Mac after exiting program

TM - Core - Aug 14, 2024

Reported to support in SF [Link Removed] and reported on reddit at [Link Removed]. For Twinmotion 2024.1 on Mac, some users are reporting that Twinmotion processes are still running after closing t ...

Level Instances appear at the origin on Linux cooks

UE - World Creation - Worldbuilding Tools - Level Instances - Aug 14, 2024

Level Instances are spawned in the origin (0,0,0) after making a packaged build in Linux ...

When level instance is in standalone mode, the actor with IsMainWorldOnly enabled is loaded into persistent level.

UE - World Creation - Worldbuilding Tools - Level Instances - Aug 14, 2024

The IsMainWorldOnly setting for Actor in LevelInstance is not reflected when LevelInstance is in Standalone mode. The setting is respected when LevelInstance is in Embedded mode. The Actor is not l ...

Anim Blueprint preview plays incorrect anim sequence after swapping sequence players

UE - Anim - Runtime - Anim Blueprints - Aug 14, 2024

It seems that the debug skeletal mesh in the anim blueprint preview can end up playing the incorrect anim sequences.  This happens when a sequence player, with the anim sequence specified via proper ...

Layered Control Rigs + Skeletal Mesh with Animation Blueprint in the Sequencer

UE - Anim - Rigging - Control Rig - Aug 13, 2024

When a layered control rig track is added to the sequencer the character’s legs will collapse into the body of the character. Switching the layer to additive will do nothing. Trying to force the ani ...

Cook errors from Landmass plugin in 5.4

UE - LD & Modeling - Terrain - Landscape - Aug 13, 2024

Chaos Cloth - Visualization materials cause async load flush and slows down starting a PIE session.

UE - Simulation - Physics - Character - Aug 13, 2024

The loading of the cloth visualization materials disturbs async loads shortly after starting PIE which causes an async flush and several seconds stall. The solution would be to move these to a sing ...