Unreal Engine Issues
Unreal Engine Issues
Color and Opacity animation option does not play for Button component
UE - Editor - UI Systems - Aug 25, 2017Color and Opacity animation option does not play for Button component, this occurs both in the Widget editor and during play. This issue is not a regression Versions Tested: 4.16.3 - CL: 3561208 - ...
Starter Content folders return to content browser after being manually deleted
Tools - May 20, 2015If Starter Content is added to a newly created project and then the Starter Content is deleted, upon re-opening the editor the Starter Content files will return to the Content Browser. Workaround: ...
Right click rename curve in Persona does not allow you to change the name of the curve on Mac
UE - Platform - Apple - Oct 24, 2016The user is unable to right click to rename a curve on Mac as it immediately reverts to being uneditable. The user can double click to rename the curve. This does not occur on Windows. ...
Pressing enter does not appear to activate OnClicked events in UMG When a button is focused
UE - Editor - UI Systems - Nov 17, 2016Pressing enter does not appear to activate OnClicked events in UMG When a button is focused Note: This appears to be a regression. This was working in 4.13.2 ...
Mouse buttons become depressed once Set Keyboard Focus is run on a 3D widget
UE - Editor - UI Systems - May 18, 2015If a user is holding down a button on the mouse and the Set Keyboard Focus node from blueprint is called on a 3D widget, the button that is being held down on the mouse is reset to the 'Released' po ...
Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection
UE - Rendering Architecture - May 30, 2025Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection (Experimental in 5.6). The licensee describes their crash, their analysis, and a proposed fix: This crash ...
Undoing parent deletion creates duplicate child actors
UE - Framework - Blueprint - Jul 29, 2022Undoing the deletion of an actor with a child actor component added via the details panel (IWCE) duplicates the child actor and the hierarchy is incorrect in the scene outliner. This seems to only h ...
Crash when deleting mesh instances of a HISM component
UE - World Creation - Worldbuilding Tools - Foliage - Apr 24, 2019When trying to delete an existing (and saved) mesh instance from a Hierarchical Instanced Static Mesh component the Editor crashes due to a failed assertion, however clearing all instances does not ...
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] ...
Crash When Renaming a Duplicated Collapsed Node Graph With a Period in the Name
UE - Gameplay - Blueprint - Feb 3, 2017A crash is occurring if you collapse a node and name the collapsed graph something that contains a period. The crash occurs if you copy and paste the collapse graph, and then attempt to rename it. I ...