Unreal Engine Issues

Mover character stuck continuously correcting movement after having a skeletal mesh as movement base

Once a mover character has had a skeletal mesh set as its movement base, it appears to get stuck in a desynced state after moving to a static movement base. It is only when the character's movement ...

[AI] Failed check in UMassSpawnerSubsystem::DestroyEntities due to EntityManager still procesing

It crashed when unspawning an AI which will destroy its entity. Inside DestroyEntities "IsProcessing" is true, but when it breaks into the debugger, "ProcessingScopeCount" is 0 (so IsProcessing shou ...

ensure(PinHelpers::UnresolvedPins.Num() == 0); fails after undoing in the editor

The underlying cause is some edge case involving a math expression node, which does some perhaps naive things with a contained graph. ...

Some operations on material instances do not transmit over transactions.

DirectoriesToAlwaysCook in platform specific configuration files are ignored by the cook process

When DirectoriesToAlwaysCook is placed in a platform-specific configuration file, the cook process does not read that entry when cooking content for that platform. The editor is aware of the platfo ...

Crash when calling SetState inside state machine OnUpdate

The crash happens when SetState is called inside the function bound to OutputAnimationPose’s OnUpdate in the animation state. This way of using Set State node is the same as shown in the official do ...

Lumen Translucency lighting vs opaque mismatch is larger than expected

The licensee's VFX team has been struggling with getting their Niagara systems with translucent materials to fit into the environments they are being used in. In a project with default settings, the ...

[Sketchup] Material texture is not updating while using Direct Link on TM

Here is a video that showcase the bug [Link Removed] Here is the Sketchup file [Link Removed] This is an importer bug because as you can see into the attached video, it is working as expected insi ...

Sequencer is not taking into account the TransformOriginOffset of the level sequence actor.

When a level sequence actor has camera's marked for preroll in it and information is gathered for a camera cuts location to send to the streaming manager, it does not take into account the Transform ...

Invalid GUIDs on new material instance parameters cause overrides to break on base param rename

When a parameter value is assigned on a newly created material instance (constant or dynamic) using Set***ParameterValueInternal, the parameter’s ExpressionGUID is left invalid (0,0,0,0). Parameter ...