My E2P finally arrived and have been working through the app and setting things up. When I powered up without props in my office and throttled up and then tried to throttle down (I'm used to my P4P) it wasn't responding. I then tried to stop the motors and my gimbal was rotating 90 degrees to the right or left if I moved the sticks out and down. I would then get a gimbal error. Is this normal? I did notice that if I held the left stick down for a few seconds it would eventually throttle down and then I could stop the motors. I'm new with this platform and will be learning here.