I'm using Blender 3.0 for the first time and I'm especially excited by the Asset Browser. I'm currently adding my library of materials, but an issue I'm running into is that getting the Asset Browser to display material thumbnail previews is hit and miss; why aren't there previews for all the materials I've marked as assets?
Hitting the refresh icon doesn't help, however sometimes I'll check the Asset Browser at a later time and several more materials will have thumbnail previews, but not all of them. Does the Asset Browser take a looooooong time to generate the previews? Any suggestions? Thanks. Blender 3.0.0 Windows 10