well I guess I get to join the ranks here.... Oit flying this morning when I get the flashing orange light and vibrating controller. Controls went WAAAAAAY wonky - very squishy and difficult. Thankfully got it down without incident. This happened as the battery was passing the 15v mark. I landed, recalibrated, put a fresh battery in and put it about 15 feet up. Kept it close and ran the batter down. Problem didn't crop up again. I DID recalibrate everything after the firmware update. Is this something I need I call Yuneec about? If this happens while it was 300 ft up and a thousand feet out I could imagine it would be a potential disaster.