Im pretty sure that our switching units are different as I recently had to try to tackle a similar problem. My switching unit is behind the front overhead TV. Removed the TV and found an unanticipated switching unit there which is called something like HDMMM unit or something similar. At times I would not have the side cameras (could care less about their loss) but always had rear view, and then rear view went out and side cameras were back. Got several random combinations. I was resigned to having to replace the unit (still might have to) It is from Xite and RiverParks. Got Entegra (Kelly) on the phone and she put me right through to XITE and they suggested I simply try the 12 volt reboot. That solved the problem temporarily now and everything is working for me now, but we shall see.
I am sure my switching unit is different, but it might be the same situation.
Kelly (female tech at Entegra CS) was great. Knew what to do, but stayed on the phone with me so she could monitor all that Xite told me about the situation.... which was very smart thing to do... Maybe Entegra is doing that now as a means to educate all their techs by listening in to all their transfer calls. I was impressed!
Gary and Dee, Zowie and Bowie (traveling cat sibs)
2019 Cornerstone 45B, X15-605hp, Imperial, Spartan K3,
2013 Honda CR-V toad, Demco Excali-Bar II,
Demco Baseplate, Demco Toad Light system, 73 de W5FI