I've read a description of why allied client rulers get this trait, but it doesn't seem to be working properly for me. I conquered a Seleukid town today as Pahlava and set up a client government. The governor immediately acquired the "Impostor" trait as soon as i ended the turn. I hadn't moved him from the city, i literally just ended the turn.

It says to send runners to rectify the situation or some such but i don't quite understand what this means. I sent my faction leader in the same city as the impostor, all that happened was my faction leader become an interlopter.

What say you?