I wonder if anyone else has seen this problem. I flew my I1 around a large open area as I wanted to completely drain a TB48 to prepare it for deep cycling. After about 15 minutes of flying, in one corner of the area is a bunch of trees which as I flew over them, the Go app lost connection and I lost the video signal. The I1 hovered for a few seconds and then proceeded to return home. The signal returned, I cancelled the RTH and continued to circle the area until the battery was below 20% and landed. When looking at the flight record in the app, the duration of the flight only shows as 4 minutes, the previous 15 minutes of flight is not in the flight log. Is this common with a disconnection?