Hi, Each time I select video size in the dji go app the app crashes. When I try again I get to the video settings but I only see three options, 4k, 1080 and 720. No fps options. My default is 1080 24fps. I have reinstalled the app several times without success. I own a mini ipad with ios 9 os. What can be done? Your help would be trully appreciated. Thanks in advanced!