Ya it absolutely sucks. Of course it was my best distance flight. On that flight I went 12,800 ft with full FPV. Once I lost it ... flipped the switch and waited. After a few minutes my tele came up 8900' distance at 468ft altitude and 42% battery left flying at 10.2 mph. I knew I was screwed... I never regained FPV only tele and started blinking red at 4800' so I descended down to below 200' anticipating it dropping out of the sky. That was the last I seen it. I wish I had GPS coordinates of its location because where it is showing it is does seem line of sight back but it shows it in the middle of the street. I went in that area and lots of trees. I will continue to look.
FYI - I dont think I'm going to buy another one ... I want to push em too far. Not sure I can handle losing another one. Look soon on Ebay... for stage 4 remote side only for sale with FPVLR 12.5 dbi LHCP and both sunhans 2.4 and 5.8 with battery pack. Oh ya... I still have FPVLR special edition custom made 2.4 ghz microspheres.... man this sucks!
See pic below for lost drone image....