One thing i noticed. Before destroying ship, drones sometimes were invisible(income damage from nowhere lol). I’m okay now, trying to get home by my own.
For the invisible patrol ships, you can see them again if you restart your game.
Also if you’re the only player on the playfield, the playfield will go offline 20 seconds after you log out, so you won’t be destroyed during the few minutes you’re out Only for a few seconds.
But sadly we can’t help here. Patrol vessels and drones are an intentional part of the game and the scenario, and sometimes in Empyrion, you get attacked
But don’t worry, next time you can come back for revenge, and the drones will probably still be there