Unreal Engine Issues
Unreal Engine Issues
Retainer Box's widgets will blend in incorrect space when retainer box uses material shader.
UE - Editor - UI Systems - May 8, 2017Displaying the UMG content with a material shader will mean that it is drawn to an sRGB aware surface and thus blended in linear space instead of sRGB space (as widgets expect). In sceenshot-1.png t ...
Moving Widgets once produces multiple "Animatable Property Changed" Undo Transactions
UE - Editor - UI Systems - Jan 10, 2019Moving Widgets produces multiple "Animatable Property Changed" Undo Transactions that appear to do nothing Similar to [Link Removed] Also occurs in //UE4/Main at CL 4702542 ...
Custom Primitive Data color widget not applying correctly to static mesh components in Blueprint editor.
UE - Rendering Architecture - Materials - Jul 23, 2025Context Custom Primitive Data is used to store custom data in an index array that is accessible through Blueprint and code. This allows for variations across instances of the same mesh without needi ...
ContentExamples: UMG Example 2.3 "blueprint" is lowercased
Docs - Samples - Jan 19, 2017The word "blueprint" on stand 2.3 in the Content Examples: UMG map is lowercase, but should be capitalized ...
Run construction script on Drag set to False has no effect on Vector Variable that use "Show 3D Widget"
UE - Gameplay - Blueprint - Feb 24, 2016If the user has the class defaults of their actor blueprint set for Run construction script on Drag to be false then the vector 3D widget will cause the blueprint to run the construction script anyw ...
Losing focus of blueprint component viewport prevents W,E,R from changing transform widget
UE - Gameplay - Blueprint - Aug 4, 2015If focus is taken away from the viewport window in blueprints (LMB in the details pane, for instance), pressing W, E, or R to change the transform widget will not work until focus is returned. ...
Combo Box String widget doesn't change color via function
UE - Editor - UI Systems - Slate - Sep 24, 2019Attempting to change the Foreground color of a Combo Box String in the Graph tab of the owning widget Blueprint has no effect. Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22.3 (CL - 7 ...
Replacing actors during LevelInstance inline editing applies incorrect transforms
UE - World Creation - Worldbuilding Tools - Level Instances - Jul 14, 2022When you finish editing a level instance, the actor is converted from the world position to the local position of the level instance, but if you replace the actor, the conversion process is performe ...
Deleting an asset and replacing with another asset while connected to source control can cause issues
UE - Editor - Workflow Systems - Oct 7, 2024When using SVN, when deleting an asset in Unreal Editor and replacing it with another asset, the checkout fails and the references connected to the previous asset are broken. ...
Widget Blueprint breakpoints hit during a Tick event do not engage the debugger.
UE - Editor - UI Systems - Jun 13, 2024The user comment on the Salesforce issue " This is a regression from the behaviour in 5.3.X, and I've reproduced it in 5.4.0, 5.4.1, and 5.4.2. The specific issue/change that caused this regression ...