VirtualScoutingInteractor BP does not allow for rotation offset

UE - Virtual Production - Tools - VR Scouting - May 25, 2021

Very thin meshes cause flickering with emissive materials.

UE - Graphics Features - May 13, 2021

The licensee has reported that when you make a mesh extremely thin (e.g. z = 0.0001), it can cause emissive materials applied to the mesh to flicker. ...

Control Rig: Setting the components of a Vector in the graph can overwrite the default values of other variables

UE - Anim - Rigging - Control Rig - May 11, 2021

It seems that setting the component values of a vector via a Set node in Control Rig can effect the default values of other blueprint variables in the Control Rig. See the attached video for more d ...

Crash when using the Blueprint merge tool

UE - Gameplay - Blueprint Editor - Apr 26, 2021

The Editor crashes when merging a change using the Blueprint Merge tool on Linux.  ...

Invalid object while verifying cluster assumptions during ShooterGame replay with matinee actor

UE - Anim - Sequencer - Apr 21, 2021

This seems to be caused by the matinee actor on Highrise and only appears to be reproducible in a packaged build of ShooterGame, not from the editor. See attached UDN for more information. ...

Material cannot be set in MaterialInterface of NiagaraParameterCollection

UE - Niagara - Apr 16, 2021

When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...

Strange performance when adjusting r.ScreenPercentage

UE - Graphics Features - Apr 6, 2021

A UDN user has reported strange performance characteristics with occlusion queries / lights when using screen percentage. It appears using a higher screen percentage is faster; the user attached a s ...

Incorrect AO rendering when that using SSGI.HalfRes

UE - Graphics Features - Apr 6, 2021

This problem seems to have started from 4.26. Also, setting r.DiffuseIndirect.Denoiser=0 will increase the noise but invisible the rendering in problem. ...

Inversing the scale of a skeletal mesh when it's simulating physics results in the mesh and collision being flipped

UE - Simulation - Physics - Mar 18, 2021

The attached project has 3 skeletal meshes. One with its original transform and then 2 copies with an inversed scale in the X axis for one and the Y axis for the other. When pressing play, the meshe ...