So we run a modded exile server running all sorts of things (zombies, claim vehicles, patrols, invasions, missions, etc.) and for the past month or so we have experienced and odd occurrence. About 70% of the time a player exits a vehicle they were just using a random "character" appears in the driver seat, rapidly changing clothes and hats. He cannot be killed and is mostly harmless. But he prevents players from entering the driver seat for random amounts of time ranging from a few seconds to over a minute, he unlocks the vehicle once he appears even if it was already locked, and he aggros zombies and AI as if he were a player.
Our players have lost many vehicles because this random element prevented them from fleeing or aggroed a horde of zombies while they were away from the vehicle. I have done some research and have not found anything else about this problem, so I have no idea what mod might be causing the problem. Our primary Admin believes it might have something to do with zombies, but we haven't been able to nail it down.
Any advice into this matter would be appreciated, and I hope this is the right category for this post.