Offizieller Kommentar
We are sorry to hear you had issues.
1. It looks like it did in your log file. But the real question is: Does your iPad Air have a GPS chip in it or is WiFi only? WiFi only devices do not have GPS chips in them and rely on the WiFi hotspots for their location data which can lead to some crazy stuff happening.
2. You might need to slow the process down a bit to make sure it is fully disconnecting before restarting the aircraft. If you do it too quickly it will still think it is on the previous connection.
3. From the log files, it looks like you are touching the sticks. This will immediately cause the aircraft to stop and hover as noted in the warning at takeoff. This is because your aircraft is using Virtual Stick controls since it doesn't have waypoint support. The second you touch the sticks Map Pilot Pro is not flying it anymore.
4. Yep. Since you are not in a programmed flight anymore you need to come back down and start over. Just don't touch the sticks. At all.