Same thing for me, i'm playing solo because that's what i prefer and last 2 days i've been farming my ass off to build schooner and i was close to being done, Then the 7.0 update comes and an hour after the update or so one of those ghost ships appear and just starts coming super close to shore and destroy everyone's shipyards and ships, there was literally nothing i could do since it was a lvl 6 ship with 41k health, I didn't have cannons on the ship yet since i still had to build the top deck so i just had to sit there and watch all my hard earned stuff get destroyed in mere seconds