I’ve tried logging a request on the Blender support site, I’ve also tried emailing the developers of Blenderkit with no response from either.
Essentially when I try to apply a material to a mesh from Blenderkit it will download the material, but nothing will apply. There are a few materials that do work, but the majority just give me the same issue.
I’ve been using Blenderkit for about a year now, this is the first time I’ve had this issue.
I normally run Blender through steam to maintain any updates (convenient), but I just installed Blender 2.93.5 standalone from Blender Foundation and it’s doing the same thing, but when I applied a texture I got this error.