Cinestar 8 with MK electronics and 3 axis gimbal. Today we were doing some tests flights with no problems. We landed switched batteries and tried to take off. The bird would not take off evenly it wanted to tip over upon take off. It's as if there's more lift on one side that was forcing it to tip over much like what happens if you invert one of the props by accident. We initialized ACC and Gyros and reset the compass but it kept doing it. I even checked the props to make sure they were tight. All the motors seem to be running properly and the electronics are running cool. No problem there and I am at a loss as to why it flies great then suddenly I have issues. I really hate MK and wish I had gone with DJI. I have had nothing but reliability issues with their electronics and absolutely no faith in their system.