Unreal Engine Issues

Reimporting static mesh doesn't respect changed lightmap settings

Licensee reports change of behaviour between UE4 and UE5 when reimporting a mesh after changing its lightmap build settings. Change of behaviour occurred in 17404767, which was to fix a similar pro ...

To Front control on Sequencer in Multi User editor will not pause playback

This may be specific to how the media playback is handling playback. [Link Removed] ...

Slower physics simulation when bSubStepping and bTickPhysicsAsync are enabled

When both Substepping and Tick Physics Async are enabled, there appears to be an inconsistency between the part of the physics simulation that calculates the number of steps and the part that calcul ...

WorldPartition: Attached Actors within Level Instances save level offset bounds

The proposed fix is implemented in CL 25389340 but needs further testing to make sure there are no issues caused by it. ...

Memory leak in Array draghandles in PropertyEditorHelpers.cpp

SetAllBodiesBelowPhysicsDisabled functionality appears to leave bodies behind that raycasts can still interact with.

From UDN We use SetAllBodiesBelowPhysicsDisabled() to disable some bodies of our Vehicle. However by drawing the disabled bodies' particles position, we found those particles stay where they disab ...

Replicated subobjects list crashes with unreachable yet valid objects when UE_NET_SUBOBJECTLIST_WEAKPTR=0

This seems to occur when the subobject is considered unreachable but is not yet pending kill/marked as garbage. In this case, IsValid returns true while FWeakObjectPtr::Get returns nullptr for the o ...

Level sequence asset is dirtied when evaluating a spawnable attached to itself.

VSM cached shadows not updated-invalidated when masked material parameters are updated at runtime

Indirect Capsule Shadows showing up on Unlit Characters

For this to be observed, Allow Static Lighting must be true in project settings. This appears to be coming from an AO pass and from a Raytraced Indirect Capsule Shadows. ...