Upon launching my third successful flight yesterday, my Inspire attempted a flyway immediately on takeoff (toward a river ). I landed with a bit of drama & after checking IMU etc etc. took off again with exactly the the same flyaway. Once again I was able to land without any damage. I then walked some 20 meters away and rebooted everything. This time, the iOS pilot app told me to wait whilst it "updated the aircraft" after which the bird took off & behaved beautifully. I did a full test flight in GPS & Atti modes without any misbehavior. Has anyone experienced this before. Any clues as to why the aircraft was updating?