Problem with Orbit Mode

I was flying in Orbit mode yesterday, and I came down to change batteries. When I went back up to continue the mission, I hit Start and the drone would start for about one second and then not move any more in the orbit. I tried a completely new orbit, logging out and back in to Litchi, rebooting all aspects of the hardware and still when I pressed the start button the drone would start and then stop in about a second. Can I get help, please?