I have 5 Pan Cam V2 cameras and they all seem to be working fine. Only issue is all the screens when viewing have a purple hue on the left of the screen and a green hue on the right side of the screen. They are all updated to the current software.
One thing to try is to cycle through the Night Vision settings. Turn it to Off, then on, and then Back to Auto. I would wait for about a second between changes.
There were issues similar to this which was caused by the change not fully being changed.