Muse Texture

Hallo - and thank you for any assistance.
I installed Muse via the normaa Package Manager.

Getting the following error when generating texture:

NullReferenceException: Object reference not set to an instance of an object
Unity.Muse.Texture.MaterialPreviewer.CreateDefaultRenderTexture (System.Int32 width, System.Int32 height) (at ./Library/PackageCache/com.unity.muse.texture/Runtime/Pbr/Previewers/MaterialPreviewer.cs:110)