Unreal Engine Issues

GAMEPLAYATTRIBUTE_REPNOTIFY does not properly propagate OldValue

Associated UDN [Link Removed] We've been having some issues with the replication of attributes. Namely we have an OnRep_ function for an attribute that receives FGameplayAttributeData& OldValue a ...

Using a fixed frame rate will cause you to leave the loop section of Montage.

This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...

Duplicating skeletal mesh assets with groom in world outliner changes Hair UV layout

Having duplicate characters with groom, hair UV layout changes which results in visible shift in character look and also changes color based on camera distance and lights in the scene (hair would fl ...

On Hit Events are inconsistent/inaccurate when using Substepping most notably at lower frames per a second

This is a regression Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary Under the same conditions in UE4 the On Hit events fire accurately and as expect ...

GetMeshClothingAssetBindings have some fallback that break nested calls

Only the first call to unbindAndBackup should have the backup, this fallback create backup data for the nested call. ...

Crash when deleting a mesh component of the mesh we are painting (SM and SK)

Solidworks exporter installation does not proceed

3 users reported the same issue. DEBUG: Error 2203: Database: 1031. Cannot open database file. System error -2147287038  or DEBUG: Error 2203: Database: 1036. Cannot open database file. System err ...

GetStaticMeshViewport() is called without checking if it returns a valid viewport causing the Editor to crash

This is not a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary //UE5/Release-5.0 CL18407655 Personal P4 When opening a static mesh without ...

AttachChildren can be incorrect on client if parent and attached actors are spawned at the same time on the server

See linked UDN for more info. It seems as though if both a parent actor and its attached actors are created at the same time on the server, then there is a chance the attached actors won't appear at ...

Double clicking the thumbnail for a TSoftObjectPtr to a UWorld will load the level without prompting the user to save

Currently, double clicking on a thumbnail for a SoftObjectPtr to a UWorld will load that level in the level editor without checking if the current world is dirty or prompting to save. This can resul ...