Whenever I try to enter the theatre, it says I "Cannot start a theatre mission when you already have a theatre mission or shadow mission in progress" or something like that.
Problem is I don't have another one in progress. Most of my quests are gone, like my G9 in progress (I don't tend to do the mainstream.)
How the hell am I supposed to do G13 if I can't cancel the shadow mission I supposedly have in progress?