I had the same problem if I understand it correctly. You are saying the camera won't reset to match the FPV? If so, I returned the x4s as they are aware of the problem. I got a new one in about a month and it works fine. Was not software.
If you have not already figured it out, you must send the x4s by itself into DJI. they will send you another one. It took about a month to send and receive. Now is perfect.