Unreal Engine Issues
Unreal Engine Issues
Crash when switching from Lumen visualization to raytracing visualization
UE - Rendering - Graphics Features - Mar 27, 2026When switching from Lumen visualization to raytracing visualization via the console, the editor can crash to desktop. The crash appears to happen deep within the driver libraries, and does not trig ...
Editor crash when deleting a outline folder with subfolders and using context menu
UE - Editor - Verse Class Editor - Oct 3, 2023A user has reported that when using the Scene Outliner in a large map that has many actors and nested folders in the Outliner, deleting a folder that has subfolders from the Scene Outliner with Dele ...
Interface cannot be re-implemented after removal from blueprint
UE - Gameplay - Blueprint - Sep 1, 2015If an interface is removed from a blueprint and an interface function is transferred to a local function, the interface cannot be re-implemented in the blueprint. ...
nonstandard bsp additive brushes cause breaking/artifacting on other bsp brushes when colliding
UE - LD & Modeling - Modeling Tools - BSP - May 14, 2015if a nonstandard additive bsp brush collides with a standard additive bsp brush, the surfaces of the bsps break and artifact, causing numerous holes in the brushes. ...
Editor crashes when attempting to open a new level from a level that has an external curve in a timeline within the level blueprint
UE - Gameplay - Blueprint - Oct 27, 2014The editor crashes when a user imports a float curve into a timeline within the level blueprint then attempts to open another level. ...
Construction Script fires multiple times when the Const Script is compiled
UE - Gameplay - Blueprint - Apr 30, 2015Construction Script fires multiple times when the Const Script is compiled. If the character is moved on the grid in the level, it will only fire once. It only seems to be an issue on bp compile. ...
Issues with Convert Selected Actor to Blueprint Class (previously Replace with Composited Blueprint)
UE - Gameplay - Blueprint - May 14, 2015A licensee on UDN brought up some issues with "Convert Selected Components to Blueprint Class". After investigating a bit, it seems there's been some regression compared to what could be done with " ...
When no root is present, Sequence Recorder sets top bone to origin
UE - Anim - Sequencer - May 12, 2016With skeltons that don't have a root or have a root that is not at the origin, sequencer recorder will snap it to the origin in it's recorded animations. [Image Removed] ...
Set Physical Material node in BP do not work with Destructibles
UE - Simulation - Physics - Destruction - Apr 7, 2015Using the Set Physical Material for Destructible does not work currently. In comparison with a static mesh physical material will change via key press during gameplay. ...
Collision Preset Cannot Be Changed On an Actor Containing a Scaled Root Component
UE - Gameplay - Jan 15, 2016In an actor that contains a scaled root component, it is not possible to change the collision presets on an instance of that actor if you are using the Viewport's Details panel. However, in the blue ...