Anyone ever have this happen? I install one of my batteries and the drone turns on immediately, all by itself, flashing four reds. It also wont turn off, I have to remove the battery. This only happens with one battery and just happened yesterday for the first time. Called DJI and they have never heard of such a thing. No crashes and no visible signs of damage on battery(bulging etc).........Thought maybe I put it in while the battery was in self discharge mode but was told by dji that still would'nt happen. Any thoughts?