Thumbnails for new files downloaded from 3DWarehouse

[LRD]

OK, I have finally found the solution in this post:

Thumbnails preview cannot be seen in folders

How did this work exactly? The Windows App Store only appears to offer SketchUp Viewer for the Oculus Rift, at least in the UK it does. There is no option to install through the App Store to Windows without having that hardware connected/installed. I had to find the app by searching the Windows Store using Google as searching for ‘skp’ files within the Store itself doesn’t show the Viewer as available at all, even for the Rift. I did try installing it from the SU website but without any success…

Update 2 worked for me. I have downloaded Pro 2022, and all thumbnails are visible. I did bail on part of the regedit because I started to scare the bejesus out of myself, but it was still enough.