i had this happen to me as well. Your back didn't get cleared out if there is not a log entry for it. It's a bug when changing Guild Leaders or something like that.

I posted a tickect and it was escalated right away. the Specilist that helped me out was great. the trick was something like you have to have everyone out of the guild for 10-15 seconds or something while the GM reapplys who's Guild Leader or something like that. i think you have to promote someone off line to GL and then log off or somehting.. not sure.. but the GM that helped me was Very Great about fixing things.