Why do my cameras have vertical color as seen in my attachment?
a couple of my cameras have started doing this as well
This is a symptom of a corrupted video stream (either due to a connection issue, or a firmware bug when transmitting an I-frame).
I'm seeing it fairly often in my own cameras, so I am suspecting there's a bug introduced somewhere.
i updated this camera recently was playing up so deleted and readded worked for half a day and then it came back. I know its not the wifi range / coverage as i get 140Mb/s to the area where the camera is
Not the internet connection its the wifi connection speed which im guessing given i can connect under the camera at these speeds and the base station is in the server rack with the wifi module then the camera should also have a strong signal - i too am between full and 2/3.
i have 5 cameras and only 1 is doing this and this is only since upgraded and reconnected.
I know its not the wifi range / coverage as i get 140Mb/s to the area where the camera is
That's not directly relevant, since the camera isn't using your home wifi.
One practical thing you could try is swapping two cameras, and see if the problem moves with the camera or stays with the location.