Unreal Engine Issues

Regression - Inherited component properties on actor instances of derived blueprints are silently reset to defaults when the blueprint is compiled, causing data loss

In certain circumstances, when a derived blueprint is compiled, all properties from its inherited components can be silently reset to defaults on instances placed on the current level. This results ...

For a TMap with C++ enum keys, deleting and re-adding a map entry in the Editor can corrupt the map data.

When adding an entry to a TMap using UE's property editors, in most cases the new entry comes with a default-initialized key (if such key already exists, the insertion fails). The case of a UENUM de ...

Sequencer- New takes will not respect project setting take number if initial asset doesn't have a shot number

With 5.2, we allowed the take separator to be multiple characters long. But it would appear that when using this feature, if you don't also have a 'shot number' before the take separator, then the n ...

Geometry with Static Shadow Invalidation Behaviour being written into invalidated VSM Pages

Geometry that has its "Shadow Cache Invalidation Behavior" set to "Static" will still draw in the dynamic shadow cache when it is experiencing WPO ...

RunAssetExportTask do not pass the automated property to the exporter

Sequencer- Cannot change multiple selected spawnable's class

Only the first selected spawnable actor binding will have its class changed when selecting 'Change Class' from the right click menu. ...

In ULevelStreamingLevelInstance::UpdateStreamingState, AddToWorld() is called before OnLoadedActorsAddedToLevelPreEvent causing ID clash

ULevelStreamingLevelInstance::OnLoadedActorsAddedToLevelPreEvent has a comment that states it must be called before actors are registered with the world, but in ULevelStreaming::UpdateStreamingState ...

[CrashReport][Crash] crash at exit due to pending perforce background tasks

Users affected: 440 Total occurrences: 672 Last occurrence: July 16th 2024, 2:40:01 pm First occurrence: December 31st 2023, 1:47:28 pm Latest version: ++UE5+Release-5.3-CL-29314046 Platform: Win64 ...

Navmesh blocking representation for cylinders is wrongly offset when the mesh has IsDynamicObstacle=true

In a mesh asset, setting Navigation>IsDynamicObstacle=true will make the Navigation / Cylinder Collision projection appear in a wrong position. As described in the case, the fix should reside in Na ...

Sequencer- Crash on restoring state when a user has animated level visibility as well as skeletal animation on an actor in the invisible level

When a level sequence animates level visibility as well as skeletal animation on an actor within that sub-level, restoring state will first unstream the level, which will unregister the skeletal mes ...