Good day all. I live close to a Naval Air Base and am within Authorization Zone and very close to the RED zone. Yesterday I had a real hard time getting the AC to take off (usually the authorization ran smoothly). But, finally got it up in the air and then saw a new message on the screen. Altitude Limit = 0 (or something similar). It did not affect my flying, but I was worried the AC would land automatically, as I was over water. Any thoughts? Thanks from Brazil