I have flown my pro for several hours, 100% problem free. Its been great. Today for the first time, my friend joined me with his air. While we were both flying and standing pretty close to eachother, out of nowhere, i lost signal(i was close, in vlos). I just shrugged it off, thinking the app crashed, and flew it back with the remote only. I landed, and tried to reconnect. The remote and drone would connect, but not the app. It would just open the app, but say "enter aircraft", not "go fly" like it usually does. The strange thing is, after resetting the app, it would very quickly say "go fly" for about 1 sec, and then revert back to enter aircraft. Again, i gave the benefit of the doubt, and thought that maybe the big solar panel array next to us was interfering, so we drove to another location. After successfully connecting and sending my pro up, still within vlos, it lost signal. This time, the controller lost signal as well. Rth initiated, and it came back and landed. At this point, i strongly suspected my friends controller was causing me an issue. It has never had even a hiccup with reception before. To confirm this, i went out this evening alone, and flew for two batteries worth. It worked perfect, just as it normally does. I know these are all suppose to be paired controller to individual drone etc, but i am almost certain my friend was causing me interference today. Next time, we will keep more distance from each other and see if that helps. Any thoughts?