Camera no found pairing issue. Tried with 2 harness and two camera

[angusghoul]

I have the problem of the camera pairing issue. GoPro send me a new harness. Today arrived the new harness , and unfortunately don't work, I'm so sad. Also, I tried with another GoPro and don't work too. I tried with 2 harness, two cameras, and both of the harness and cameras work perfectly on the grip. So, what can I do? It's the drone or the stabilizer? I think it's the drone

Here is the test

 

[rotorwing]

Which of the GoPro hero cameras are you having this issue?
I realize this post is almost 2 years old.