Unreal Engine Issues

Moving a Widget in UMG by dragging the position value results in Stuttering and Jerking

This is a regression. Tested in //UE4/Release-4.27 CL#18319896 Moving widgets within UMG by dragging the position value with any sort of speed results in the widget stuttering and jerking around.  ...

Landscape visibility mask cannot be imported/exported

The ability to import/export visibility mask was available in 4.27. ...

BaseColor of SubSurfaceProfile cannot be obtained when using GBuffer in Niagara.

Multiplying CompleCollision by inverse scale does not create a collision

If multiplying a mesh with ComplexCollision by inverse scale, the geometry may not be created on the mesh. This may depend on the assets of the mesh. In the sample example, the navmesh is not create ...

Undoing parent deletion creates duplicate child actors

Undoing 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 ...

Absolute World Position not returning the correct values in post process material after Temporal Upscale

VolumetricFog does not update + creates artefacts in low exposure environments

See licensee video here which shows the issue - [Link Removed] ...

The process of performing SetTextureParameterValue on a decal component during BeginPlay, the result will not be the same every time when streaming a level.

If executing CreateDynamicMaterialInstance and SetTextureParameterValue on BeginPlay for the decal component, the decal will be different the first and second time level streaming. ...

There are parameters in Niagara's AddVelocity module that will not be copied and pasted.

Newly created Groom assets crash when opened after restarting the editor