THEMA:

Hello Didier, Thank you for sharing the video. This is definitely an issue and I wouldn't use the receiver with this kind of behavior. Especially if you plan to use the Gyro, we had a couple of discussions in the forum with unknown effects on the Assist caused by mechanical fixation.
I checked my REX12 and all of them (4x) are ok, the PCB is fixed, nothing loose as your example in the video.

Thanks for sharing the video! Yes, you are right, that is an issue! I will keep an eye on that on my (future) assists.

Regards
Kai

Although Jeti advised me this is normal system behavior, I contacted them again to say that I find it not acceptable. Jeti suggested me to send the REX to them directly for a check-up.