I've just aquired a Ronin-M and I'm trying to set it up. The DJI Assitant app continually crashes. I've got as far as logging in and then it crashes. It has crashed around 20 times. I have deleted the app, re-installed. Done a hardware reset on both my Ipad mini 3 and Iphone 6. The app still crashes. I have 41.9 GB of free space on my ipad mini 3. I'm running IOS 9.0 on my Ipad mini 3 and IOS 9.0 on my iphone 6. Are there any other troubling shooting procedures that I may have missed? Thanks.

I am also facing the same problem, so a solution from DJI is much appreciated!
(Sorry not being able to help but just letting you know you are not alone!)

There seems to be some issues with the DJI GO app with IOS 9 so maybe in some sort of way this could be related but I am taking a stab in the dark Hopefully it is resolved shortly.