everytime i meet a wild pokemon game crashes and this message from the app appears (not internal, i play on mac) : "The program Game.exe has encountered a serious problem and needs to close. We are sorry for the inconvenience" and " This can be caused by a problem or a deficiency in Wine. You may want to check the Application Database for tips about running this application"
Oh and moreover i was able to fight against Damian so the problem only concerns wild pokemon on the first route before the cave entrance (the one you take by escaping darkrai's cult)
Thanks for having a look