I'm currently experimenting with DD during my 1 month trial. My main need is to periodically map my maple farm. I mapped the terrain which is around 86 acres. The height is only 170ft but I'm launching from the top of a hill.
The mapping starts out great, even if contact is temporarily lost, the drone continues on its mission. Soon after the first battery change, the drone RTH. No message or notification on the app, just the automatic RTH beep on the remote. I tried re-starting the mapping from the same point with a brand new battery with the same results. The max distance is not set and I also tried to set the max distance to a very big distance just to make sure. The drone is at the latest firmware and the latest no-fly zones are uploaded. I'm nowhere near any no-fly zones anyways. The DroneDeploy app is at the latest version and it does have internet access for the whole mission although the drone may lose contact from time to time.
Here's my latest launch attempt:
I tried to go directly to way point #18 as you can see by the dotted line. Shortly after losing contact, the drone, apparently off-course, reappeared and the RTH beep started. The drone does not always reappear off-course however.
VERY IMPORTANT: I tried re-creating the same 'mission' in Litchi and it performs perfectly without any unnecessary RTH (even if contact is lost for several minutes). I did this several times. So what is happening in DD that is not happening in Litchi?
Since parts of my initial maps were imaged 2-3 times because of all the retries and some other parts were imaged 0 times, it created a very spotty and un-reliable map.
As is probably standard practice, somebody from sales (Jacob?) contacted me by email shortly after my first map to set up an appointment. I replied with my cell number and a few discussion topics including my inability to complete a map and also fact the there was a big gap between the free plan and the pro plan from a money standpoint and my occasional needs. Maybe dismissing me as a potential paying customer, he hasn't got back to me after a week.