Yes you can contact Litchi by email, the are a bit slow but do get back to you. I use IOS to create, save and fly missions directly on the device with no problems. Not sure if android is different, but the principle should be the same. As long as I have GPS, I create a mission offline, give it a name and when I fly, select it, load it and run the mission. To remove the mission, I highlight the mission, swipe left and the option to delete pops up. I too launch the mission from the ground as my first and last waypoints are close to home in case I have any challenges.
How do you guys launch from the ground? I tried that as well and no dice. I put it in F_GPS and made sure auto takeoff was enabled.
BTW, ow long does it take the app to send the data to the drone? I waited forever, then finally landed it and turned it off. After about a minute, I got a voice warning that the mission failed to load.
So could it be it's still trying to load the waypoints? 5-10 minutes to load a max of 10 waypoints seem to be a bit much.