Zenmuse H3-2D tilt stutter - CAN ANYONE SOLVE THIS?

[Jeroam]

Ever since I installed my Zenmuse gimbal I have noticed really jerky movement that happens when tilting up and down. It happens at the exact same spot every time (around 45º). It's pretty frustrating because it often ruins the shot.

Here is a video to show you what I mean: https://www.youtube.com/watch?v=cKoXH-VLevs