Video shot backwards and camera drop after few seconds?

[LostInDark]

Hi, today I've shots and few times when I try to shot backwards camera drop after few seconds. It happened to me few times. You can watch my video.
Video shot forward is normal without any problem.

Is this issue or something that I don't understand?

Thanks for help..

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[Ice_2k]

That’s the gimbal reaching its physical limit when the aircraft tilts forward to brake, it can’t look up that much