Unreal Engine Issues

"Base Pass Shader" stat results are missing or display incorrect information while using Vulkan

Base Pass Shader results are not showing, or showing up incorrectly when looking at the Stats results within the material editor of an Unreal Editor using Vulkan. Regression Tested: //UE4/Release-4 ...

HLOD lightmap lost after level reopening with "save LODActors to HLOD Packages" option in project settings is on.

FPackageName::SearchForPackageOnDisk fails to find maps when using IOStore

This bug was discovered by a user who tried changing level through the 'servertravel' console command (HandleServerTravelCommand).  Debugging shows that FindFilesAtPathInIndex won't return anything ...

Merge actor issue with similar materials

bUseAsOccluder not taking effect when prepass is disabled

See the licensee discussion for details discussed with [Link Removed] ...

RebuildHLOD UAT script doesn't properly handle the -nop4 command line flag

The script performs P4 commands even if -NoP4 was specified. It should properly handle -NoP4 by checking for  if (CommandUtils.P4Enabled) ...

GetMouseX returns stuttering value if ShowMouseCursor is enabled

Showing the mouse cursor and holding down the left mouse button while dragging will cause the MouseX event to broadcast incorrect axis values.  ...

Undoing Level visibility change causes levels moves to wrong world origin offset

changing level visibility causes levels moves to strange position when using world origin shift

Selecting another level while the level is hidden cause the level moves to incorrect position. it occurs only when using world origin shift in world setting. ...

CachedMaxDrawDistance value are not updated by CullDistanceVolume in persistent Level

in PIE, RerunConstructionScript() is executed and actor's CachedMaxDrawDistance is updated as expected. in packaged game, RerunConstructionScript() is not executed  so, CullDistanceVolume is not u ...