Simulation manager module doesn't work well on dedicated server. Objects are hidden on mission init, but as soon you are close to them, they are not shown again.
And AI are not hidden at all, the whole thing doesn't work as it should. Please fix it, this module can be really helpful for big coop multiplayer missions.
It seems that in fn_moduleSimulationManager.fsm there are missing hideObjectGlobal and enableSimulationGlobal
It works on dedicated server but only if the playable unit got AI activated at mission start, if the playable unit got AI desactivated nothing will show up.
So its an issue for a mission where there many player who connect/disconnect from server cause there will be many empty playable unit over the map and they activate a large amount of AI.
They just need to make it JIP compatible, or give documentation to init that thing when a player connect to the server.
I don't know why dynamic simulation work on DS/JIP compatible and not simulation manager... Simulation manager vs dynamic sim its just day and night on a high amount of AI, and its really easy to set up... don't need to flag each group and vehicle and the performance of simulation manager is far better than dynamic sim.