There has already been a thread recently started about this issue, but i’m worried that it will get missed if it’s not in the technical problems category. There doesn’t appear to be a thread under known issues:
We are having the same issue in our school district.
Tried it in Edge and Chrome.
I’ve tried a dozen different models, all with various complexities, and they all show the same error.
I also found an older thread about signing in to 3d warehouse, then going back to Sketchup and that works, but we use Microsoft single-sign-on for Sketchup For Schools and 3D warehouse doesn’t support that (Sketchup For Schools Components 3D Warehouse Error - #18 by m0811629).
It seems to work if users download the Sketchup For Schools app from the Microsoft Store, but that’s also inconvenient.
Edit: While the app appears to work on my device, other devices, that appear to be set up the same (same Microsoft Edge version, etc.), don’t work. I’ve tried three others.