Unreal Engine Issues

Niagara System User Parameters Resetting After Closing the Editor

Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z.  Foun ...

Dynamic Delegate with Return Value can't be set with BP Function

"showdebug abilitysystem" shows incorrect attribute stats for debug target

When using 'showdebug abilitysystem' and switching debug target actor with Page Up and Page Down. It will not change to show the debug attributes info for the new target. The debug will still only s ...

[Reverb][Regression] - The Reverb Effect in World Settings Does Not Update When Loading New Levels

When loading a new level via the Open Level node in Blueprints, the World Settings do not update the Applied Reverb Effect. When trying to reproduce the issue in 4.25.4, issue did not occur (the r ...

Override Game Mode in Media Render Queue does not work properly

This problem behaves differently between Local and Remote Render when Game Mode is set in Override. ...

Scene Capture 2D Generates Artifacts with Orthographic Projection of Nanite Mesh on Plane

Occurs 5/5 times: The Scene Capture 2D camera displays artifacts when the projection is set to Orthographic and a nanite mesh is projected on the Scene Capture 2D plane. ...

Virtual Bones Are Not Retained in Retargeted Animation Aim Offsets

Occurs 5/5 times Virtual Bones are not retained in Retargeted Animation Aim Offset. Regression does not occur as UE5 Manny assets are not available for retargeting before UE5.    ...

Editor crashes when keying a frame to an Animation from Pose with Appended Frames

This is a regression. Tested in //UE4/Release-4.27 CL18319896 Editor crashes when keying a frame to an Animation from Pose with Appended Frames. ...

Collision between physicalized actors and instanced static meshes produce warnings.

Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...

Distance Field AO from Moveable Skylight (non-Lumen) invalidates AO incorrectly with a screenspace offset to the right of moving objects

When Global Illumination is set to “None” in the project settings the ambient occlusion does not correctly render shadows for moving objects. This has been observed in versions 5.4 and above. ...