I’m having the same issue on my end. Tried multiple models that are on draft, no matter what it tells me that it “Cannot load URL”. I’ve turned off all blockers and cookie settings, still broken.
Please fix this, I use the screenshot tool a lot and I’ve tried this on two other browsers with the same problem.
Edit: I managed to get around this issue by going through my web history and copying the URL from an already loaded model, than changing the model code in it to the model that I want to screenshot. I noticed also when I hit screenshot it doesn’t display the model name like it used to, it just says “screenshot” so it seems it is a problem with reading the model name?