Unreal Engine Issues

BP - Exclusive nativization will fail at cook time if a BP class includes a ChildActorComponent with a Data-Only BP set as the ChildActor class.

Note: This does not occur when the nativization mode is set to "Inclusive" in the Project settings. Current workaround: Ensure that the ChildActor class is NOT a data-only Blueprint, by adding scri ...

Expand Node crashes engine

The engine crashes when after right-click > Expand Node on any composite node. Crash Report: [Link Removed] ...

Editor crashes when child blueprint uses billboard in construction script

The editor is crashing when a child blueprint uses a billboard in the construction script after hovering over 'apply instance changes to blueprint' from the details panel. ...

Editor Crashes when enabling Vertex Colors on an imported Skeletal Mesh with Morph Target Animations

Licensee wants to be able to import skeletal meshes which have Vertex Colours (their entire game is Vertex Coloured) and Morph Target animation, but they're seeing a crash when toggling Vertex Color ...

Crash Applying Multiple Anim Modifiers

Fatal error: [Link Removed] [Line: 2516] Fatal error: [Link Removed] [Line: 2516]Objects have the same fully qualified name but different paths. New Object: MotionExtractorModifier /Game/Characters/ ...

Newly created Groom assets crash when opened after restarting the editor

Adding parent constraint to control rig in shot crashes the editor

Adding a constraint to a control rig in a subsequence will crash the editor. ...

Editor crashes when a floating window PIE command is issued repeatedly

After assigning Keyboard Shortcut for New Editor Window (PIE) as "F3" and returning to Viewport and selecting "F3" to open New Editor Window (PIE), continuing to repeatedly press F3 results in the e ...

Crash when using Get Start/End Frame (Seconds) node with MovieSceneSection have no opened bound

If use Get Start/End Frame (Seconds) with GetStartFrame has a section isBounded is False, eg 3DTransformSection, editor will be crashed. Specifically, a following code occur crash. inline FFrame ...

Crash when changing details of an animation in an Animation Composite

This is a regression tested in //UE4/Release-4.27 CL#18319896 Fatal error is thrown and the Editor crashes when changing details of an animation in an Animation Composite. ...