Pawn Camera Locked to forward Vector

Development Programming & Scripting Blueprint
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Hi, I have a problem that I can not solve for some time, I have implemented in my game the possibility for the player to possess a drone, which he can then move with a simple floating pawn component.

My problem is the following: when I control the drone, after a certain random moment, the rotation of the drone’s camera on the Z-axis locks to its initial position and I can’t rotate the drone anymore (I can still move forward/backward, go left/right, and up/down).
This is the first part of the video on the right when i get this shaky movement.

I rebuilt the exact same system in another project and it works perfectly, (second part of the video)

I tried to find the differences between the two projects that could impact this “bug” (Inputs, controller rotation, code etc) without finding a solution, if someone has an idea of the problem it would be great.

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Bp_Drone_Movement
Bp_Drone_Movement1818×830 192 KB

The Blueprint Code for drone’s movement (i add controller roll input instead of yaw juste because of the rotation, of my skeletal mesh in the viewport but i also try it and it doesn’t resolve my issue)

Bp_Drone_ControlRotation

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Ah, seems to be the classic Euler Gimbal Lock. I suggest you look at the video.

Here is a part of the forum which explains solutions regarding this problem: How can I avoid Gimbal Lock with Rotations?