Here is a pic of what seems to be a melted arm where the arm attaches to the landing gear worm drive. It happened after a very short flight (5-10 seconds) where the quad was behaving very erratically, so i landed it (softly) and the quad leant to one side like a run aground ship. Has anyone had anything like this happen to them? This quad had just come back from a crash repair by Drone Doctor in Brighton.