Extremely frustrating error message when trying to create a new feature. I first created a new polygon feature class (in a local file gdb), then created a new feature by digitizing a polygon. Pretty simple. When I try and save I get an error.

The only solution I have been able to find is to create a new geodatabase and try again. Am I missing something? I have had this issue before, but I still don't know why it is happening and if it is a bug in ArcPro.
Thanks for your suggestions.