Stops taking pics and flying after 4th waypoint

Using DJI Phantom 3 Advanced and iOS app. First test flight on Monday March 14th went perfect. Tried today and on 4 different attempts with different flights the app acted like it had a successful flight after it hits the 4th waypoint. It announced that I had 40 or so images and it was done. The flight should have continued for another 8 minutes or so. Upgraded firmware on drone with no luck. Any ideas on what I am doing wrong?

I am in the 30 day free trial. Is this limiting how many pictures I can take?

I tried another mission today and boom! Magically works. Weird.