Wow, that's messed up.

If they find there's a glitch (you know, 2-3 weeks from now) and they fix it (2-3 months from now), you're probably going to have to retransfer anyway.  So I might be inclined to go back 2022, un-final the K-1, roll to 2023, and then delete that K-1.  You could rename your 2023 "ghost" file to filename-broken so if the work-around doesn't help you're no worse off than you are now.

I can think of no reason for this behavior on an 1120S (other than gremlins).  My first thought with a 1065 is that maybe you tried to go from 2 partners down to 1 partner and the software got grumpy trying to have a partnership with only 1 partner (and rightfully so, that would have been a termination in 2022).

Good luck.  Either way, post back if you find a solution.  It might help someone else.  Maybe someone else can chime in if they're run into a similar issue.

Rick