Ok so luckily the footage for this race came out alright. But i missed quite a few things at the track yesterday due to the app crashing over and over again. I have a samsung Galaxy S6 edge. Has anyone else been experiencing this??  

Yes. Go 4 app crashes every flight using a Motorola Nexus 6. Litchi worked on a short test flight. I will need to try it some more before I can see if it is going to work all the time.

I would prefer to use DJI Go 4 but not if I am going to have to stop mid flight to restart the app multiple times.