Tonight I experienced something new and quite frustrating. Every time I went to a hangar to select a vehicle, plane, etc I got "Invalid Weapon Set" error. I've had this in the past, but the usual "select a different plane, then come back" did not work. I logged out of the game and back in...still no fix. I literally had to log off the internet, and back on before I could select somehting to fly or drive and actually launch it....but, as soon as I was done, or dead or rtb'ed, back to the Invalid Weapon Set thing again. I even tried shutting down and rebooting...it still did it. This is highly annoying to say the least.
I will try again tommorrow night and see what happens.