I'm 1 Assassin coin away of the Platinum on the remastered version on PS4. The one coin missing is in the south-east of the Bayou next to a camp with a chest. The guy I'm supposed to rob is there, but all a get is money, no assassins coin. Also, the coin icon isn't showing on the Map when I'm approaching. I'm leaving the area and come back, I go back to New Orleans and come back but nothing changes...

Did anyone experience this glitch ? Is there a solution to it or should I start a new game over ?