Curious if there’s some sort of error happening on the javascript side of things that’s preventing things from saving for the terms. This is an area that CPTUI itself doesn’t touch at all, so something within WP core or the editor screen is amiss at the moment. Do you know anything regarding your browser’s developer console and developer tools?
Ah… It does look like it was the whole jQuery issue with WP 5.5. I had updated to 5.5.1, so I assumed that wouldn’t be the issue, but another plugin ended up causing the problem. Thank you for your help on this!
walkingmiller
Welcome. Glad it was a simple thing like that. Darn JavaScript!