Hello everyone, I am having an autopilot issue with my QOTS II . I encountered this problem since my first flight with the autopilot system. I set my route as usual following all the procedure. Also, I have already switch on FD then LNAV and VNAV on ground before takeoff. But as soon as I was airborne, I switch on the Left autopilot as it immediately show VNAV ALT and autopilot disengaged. I try to switch to center and right autopilot and the same problem happened again. Here is a screenshot of the problem.