DrMarsha wrote:
After upgrading to Monterey, TextEdit is no longer working for me. When I paste text into the box and try to convert to Plain Text, I get the spinning beachball and it becomes unresponsive until the app crashes. Any thoughts? Thanks!
Never heard of this bug before...
Try changing the default preferences to open in plain .txt and compare your results:
TextEdit.app>Preferences

If no insight or resolve—
To trouble shoot further you can:
—SafeBoot https://support.apple.com/en-us/HT201262
Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.
This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.
you can submit your Apple Feedback/bug report here: Product Feedback - Apple