Thanks for the video, nice and easy to see what the problem is . I have had this issue from time to time and it it usually just a weird bug with librepilot wizard. But just to make sure, could you go to the receiver tab and then test your radio there without the wizard just to see if the board it even picking up the inputs at all. You might also find that your ch1 from your receiver is going to ch4/5/6 on the CC3D.
If you se that some channels dont move, then try to swap the cable for a channel that does not work just to check if its thru inputs on the FC not working, or the outputs on tour RX so we know where the problem is.
Hope that makes sence, let me know how you get on