Do you maybe have some Christian vassals? I don't know if that would cause the event to fire for you, but it's the first thing I can think of, other than an bug.We civilized muslim won't do that frankish barbarian tricks, why is this event triggered for me?
I've checked event 77002 is with
religion_group = christian, and no mods related to this file. Is my CK2 gone insane?