The weird thing about this bug is that the feature works for me perhaps 70% of the time.
I’ve experienced the bug in Chrome, FireFox, and MSFT Edge. When it doesn’t work, it seems to not work in any browser. Although my primary browser is Chrome and I have only tried it in the others when Chrome has already failed.
I’ll try a few things when I have time. I can open Chrome developer tools and see if I notice anything in the console and I can experiment with trying different wireframes and see if there is something wireframe specific.
I also have a screen shot tool called Greenshot loaded. I’ll try unloading it and see if that makes a difference.
Export to PNG ALWAYS works, even when grab to clipboard doesn’t.