Hello,
I was wondering if anyone had seen this error. "This member cannot be found at the location specified." I am trying to edit an annotation class in ArcPro. This is a annotation data set with a relationship set up and when I try to edit the annotation feature class I get this error.

I had to "upgrade data set" before this because the data set was imported from a separate database and was all configured in ArcMap. I have searched for this but cant find any hints as to what this means.
I was hoping someone might have a idea.
Best regards,
Jim