Unreal Engine Issues

Static mesh's material slot's cast shadow does not require a build of StaticLight

If static mesh's material slot's cast shadow is changed, UE4 does not show "LIGHTING NEEDS TO BE REBUILT". I solved it with the following fixes. StaticMeshEditorTools.cpp void FMeshSectionSettin ...

Cannot run any packaged project if "Force all skinned meshes to recompute tangents" has been enabled in an unrelated project

Enabling the "Force all skinned meshes to recompute tangents" sets the value at a Windows user level so that it affects all UE4 projects opened by that user, including unrelated packaged projects. T ...

Nativizing actor does not destroy component with construction script.

Running destroy component with construction script placed on level blueprint does not destroy component when it is nativized. It works correctly with PIE and Not Nativize. Also, if the actor that wa ...

Undo then Redo Creating a Spawnable in Sequencer Creates Extra Actor in Level

There is a bug when performing an undo/redo on pasted or spawned actors in Sequencer.  It appears that the transaction system is re-creating an actor on redo, but Sequencer doesn't see that, so it ...

Crash when changing Twinmotion Cloud and Content library to the same folder.

Crash editor when raytracing is enabled and enter kanji characters into TextRenderActor

The editor crashes when entering Kanji characters into TextRenderActor with raytrace enabled. This does not happen with English text.  ...

Source Control: Perforce Branch History is Parsed Incorrectly

Several issues have been reported within the ParseHistoryResults method from PerforceSourceControlOperations: 1. Any Records that share the same filename will only display the last record with that ...

Crash on exit PIE after editing character blueprint of a code based side scrollers

After editing character blueprint of a code based side scroller project, starting PIE will show the camera detached from the character and exiting PIE causes the project to crash. NOTE: This appear ...

Ensure starting PIE after editing character blueprint of a code based side scrollers

After editing character blueprint of a code based side scroller project, starting PIE will show the camera detached from the character and exiting PIE causes the project to crash. NOTE: This appear ...

Unnecessary files in Perforce Depot

Several unnecessary files seem to have found their way into the Perforce depot and need to be cleaned up. Affected files:Engine/Documentation/Source/Engine/Matinee/HowTo/MHT_3/Images/MHT#_Drag_In_C ...