I received my E2P today and I'm having a hard time figuring out the controls for the camera. In DJI apps it's easy to toggle between Video and Photo by selecting the image that refers to switching those modes on the screen. The Autel app seems to have the same images on the right side of the phone display, but they will not respond- they just stay greyed out. Pressing the record or photo buttons on the controller works fine, however. What am I doing wrong?