When I join my friend through right clicking on his profile picture, and then joining him, sometimes the WAC Aircraft will work, other times it just puts me in the pilot seat withought being able to actually press any buttons to control the vehicle, it acts like a passenger seat half of the time.

If I was not able to make that clear (I can get confusing, to myself at times and to strangers even in the same game) I mean this. I will spawn the vehicle, then get in the driver seat. It will not give me the controls, and will act as if I am in the passenger seat. Sometimes it does not do this, othertimes it wont work at all when I am IN my friends server.

If anybody else has had this issue could you tell me how to fix it if possible?