Persistent Roma CTD ...

[bovi]

Many people have problems with that guy. I think it may be an ancillary that he picks up that screws it up. I can't get it to happen in a campaign that I start, and I can't see what ancillaries he has got because it crashes when I try to see in the savegames posted. Can you remember the ancillaries he has received recently? I see you mention "Auctoritas", but I can't see that in the files, the closest is Office of Censor, which includes the word.

As a workaround, move him out of Rome (using the Army tab), then do what recruitment you need to do and put him back in.