Yep, this has been happening to me for the past week or so. I tried to give Airbnb time to fix this bug, but they have yet to... This is a pretty important issue, so hopefully there is a fix soon! I've attached a screenshot of the issue:
The pinwheel spins endlessly after hitting 'Save'.
After clicking 'Save' once an edit has been made, the pinwheel spins endlessly. I've tried multiple times with the same outcome. Furthermore, if you click outside the "edit message' box, and try to re-open the saved messages box again, the pinwheel reappears. No fix on my end, it appears to be a bug that only Airbnb can fix on their end.