Hello All, I sent my P4 on a waypoint mission with Litchi. This mission went put the drone out of R/C range for roughly 6 or 7 minutes (approx). Anyway while the drone was out doing it's thing, the remote control starting beeping loud and obnoxiously. Any idea why or what that means? The drone eventually came back into R/C range (right on schedule) and I think the beeping stopped at that point but do you know what causes that beeping to begin with?