Unreal Engine Issues
Unreal Engine Issues
UFE: Can't delete custom launch profiles
UE - Editor - UI Systems - Jul 26, 2023The confirmation message will fails spawning with the following messages in the log: [2023.07.25-20.04.01:038][ 0]LogWindows: Error: Failed to create dialog. The specified resource type cannot be ...
Bug with control rig display name and sequencer
UE - Anim - Anim in Engine - May 17, 2024Control Rig Tracks are not visible in Sequencer when the Name and Display Name are not set to the same value in the Control Rig graph, and the track filter is set to "Selected Control Rig Controls". ...
Screen Probes and Specular Firefly Flickering near screen edges
UE - Graphics Features - Lumen - Aug 6, 2024Lumen's rough specular indirect lighting buffer can have fireflies along the bottom and right edges of the screen. Also tested in //UE5/Main, CL: 35177423 ...
Vector VM - Crash / memory stomp when using > 255 external function calls
UE - Niagara - Aug 12, 2025The Vector VM has only every supported a byte's worth of external function calls, when we blew the limit it would index into the incorrect VM call. The new VM will also overwrite memory when exceed ...
Reset Instance Changes to Blueprint Default does not revert changes made to instances
UE - Gameplay - Blueprint - Sep 15, 2015creating an instance of a blueprint and making changes to the instance will not respect "Reset Instance Changes to Blueprint Default" when pressed from Details Pane. ...
LIVE: Print string not working when nav mesh bounds volume information is pulled up
UE - AI - Nov 12, 2014After place a Nav Mesh Bounds Volume into a level, launching the game and pressing the [ ' ] key to show information about the Nav mesh the print string stops working. If the User closes the game w ...
A Pass-by-Reference function input cannot accept a reference to Self
UE - Gameplay - Blueprint - Dec 30, 2014A Pass-by-Reference function input cannot accept a reference to Self. Workaround: Cast from Self to the desired class and use that for the function's input. ...
Looking at several BPs during play, that add multiple static meshes in construction script, drops the FPS
UE - Graphics Features - Jan 9, 2015Looking at several blueprints during play, that add multiple static meshes in their construction script, drastically drops the FPS. As a workaround, I suggested to the user that he should use Insta ...
Duplicating / Moving (to another level) an actor with a Hierarchical Instanced Static Mesh component causes a crash
UE - Graphics Features - Nov 14, 2016When you have an actor with a Hierarchical Instanced Static Mesh component that has a Static Mesh set and is populated with at least 1 instance and then duplicate it or move it to another level, it ...
Attempting to Duplicate an Asset Copied to a New Folder Spawns the Original Asset
UE - Gameplay - Blueprint - Mar 8, 2016Copying an asset into a new folder, placing an instance of the copy into the level, and then attempting to duplicate that copy by using CTRL+W in the viewport creates another instance of the origina ...