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 ...

Spline Array created in code cannot be edited in a blueprint

If a TArray of spline components is created in code it is not possible to edit/add nodes to the spline inside a blueprint. ...

Spline Mesh Component created from KML file doesn't render in PIE after spline point change

Spline Mesh Component created from KML file doesn't render in PIE after spline point change I cannot get this to occur outside of the users test project. He is pulling data from a KML file, creatin ...

P_GPU_particls_collision2 barely visible when rendering in OpenGL3

I first experienced this on my Linux machine using a P4 build. I checked it against Windows in DX11 and did not experience the issue. Afterwards, I followed the above repro steps and saw it was occ ...

Static code functions cause associated blueprints to not compile after a hot reload

If a function inside a BlueprintFunctionLibrary class is declared as static, instances of the function node inside blueprints cause the blueprint to not save after a hot reload. This does not affec ...

Base Pose Type Not Retained When Retargeting Animation with Additive Anim Type

Occurs 3/3 Times Base pose animation is not retained when retargeting animation with an additive anim type. ...

Clipping bsp brush rotates clipped face on brushes that have their X,Y,Z values altered

If a bsp brush is rotated, then the brush clipping feature is used the "Brush Clipping" feature will rotate the created face by 90 degrees or disappear entirely (if set at an angle). ...

LIVE: Multiplying an FQuat*FQuat via pass-by-value crashes editor on open

If a function takes in an FQuat value and then multiplies it by an FQuat, the project will build properly but then crash when trying to launch the project in the editor. Example project available b ...