I managed to replicate & fix this in 0.61.3.
I have hard time replicating it on my end. Could you record a video, or send me a screenshot? TIA!
Thanks for reporting it, I'll check that out. It might be that the new threaded loader is glitching out in some edge cases.
This should be fixed in 0.21.4. Please let me know if that patch worked for you.
I never expected that Mac will resize the window briefly to 1x1px.
Thanks for reporting that, I'll find a way to get it fixed ASAP.
Good point, will do.