I upgraded my app Saturday, and the video was all glitchy and I had a really bad video lag on my Samsung Tab A. Never had that before. I ended up refreshing my firmware and it seemed to work. I flew 1 or 2 batteries and all was fine. I got to fly today, and it's back to the same issues, glitchy video and video lag. Was practically unflyable and couldn't hold anything in the frame. Going to try to go back a version in the app and see how that works. Hope they come out with a fix soon. Hoping to fly this weekend.