Unreal Engine Issues
Unreal Engine Issues
Lumen doesn't use correct sky light settings when GI scalability changes from Low to High
UE - Graphics Features - Lumen - Sep 24, 2024When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture. No ...
Cursor radius set via FSlateApplication::SetCursorRadius is ignored during FHittestGrid hit testing
UE - Editor - UI Systems - Slate - Mar 16, 2026The cursor radius configured through FSlateApplication::SetCursorRadius() is not respected during Slate hit testing. The radius value is correctly stored in FSlateApplication and passed into FHittes ...
Material Editor Viewport does not display World Position Offset
UE - Rendering - Graphics Features - Mar 19, 2026The preview Viewport in the Material Editor does not correctly render World Position Offset. It appears that the RenderVelocities pass (which is also drawing the depth for the preview sphere) does ...
TBigInt allocates twice as much memory as necessary for FString input
UE - Foundation - Core - Jul 9, 2015TBigInt appears to allocate twice as much memory as necessary for the input. This produces an unexpected output of the input value. ...
Using Start Players as Spectators checkbox does not affect Player0
UE - Gameplay - May 20, 2015When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...
Skeletal mesh defined in code cannot be set in the editor.
UE - Gameplay - Blueprint - Apr 16, 2015Defining a skeletal mesh component in code and attaching it to the root component will not allow the component's details to be editable inside the editor. ...
Text Render Actors do not maintain relative offset when attached to blueprints via construction script
UE - Gameplay - Dec 1, 2015Text Render Actors do not maintain relative offset when attached to blueprints via construction script. This did not reproduce with other actor types. Types used: Static mesh actors, blueprints, b ...
REINST error breaks links in blueprints calling a blueprint component that has been altered
UE - Gameplay - Blueprint - Aug 24, 2015Changing a blueprint component (adding a function, adding inputs, etc) causes REINST errors if PIE is pressed immediately after compiling without compiling all blueprints that are calling the compon ...
Cannot change inherited variable default values through details panel
UE - Gameplay - Blueprint - Aug 19, 2015Child blueprints cannot change the default values of inherited variables. ...
Deleting a spline point of a spline blueprint then moving crashes editor
Tools - Jul 7, 2015If you delete an end point of a spline blueprint and then attempt to move the blueprint the editor will freeze and eventually crash. Frequency: 1/1 CrashReporter: [Link Removed] ...