Ive been out flying this weekend for the first time since replacing a motor that went out midflight. I put a red sticker on one of my batteries and blue on the other. Ive been noticing that every time I run with the red battery, the P2 randomly starts flashing red lights during the flight, then back to green. This starts right away after taking off, so its not a low battery indicator. Nothing about the flight seems to go bad, but I get nervous about flying it as high or as far out as I would like. Anyone have an idea of what that might mean?