Official comment

Make sure you are following the directions in these two articles:
http://support.dronesmadeeasy.com/hc/en-us/articles/206098446-Remote-Firmware-1-4-30-Issues
and
http://support.dronesmadeeasy.com/hc/en-us/articles/206034873-Setting-up-your-Drone-for-use-with-Map-Pilot
Restarting the iOS device after doing these has fixed things too we hear. It seems that the DJI SDK gets linked to the Go app by default and you have to play with it a bit to get it to go. Once you get it it doesn't seem to have any problems after.