Looks to me like you have a new Possum friend What is switching? I have 4 WCO, night vision is set to Auto and they don’t do that even if I’m recording to the SD in the cam at the same time. I’m using cam plus lite although I did have them on Cam Plus at one time without that issue.???
***Try putting the cam with night vision on, IR lights on, instead of night vision in Auto and see if that makes a difference. Of course it will be black and white in the daytime also.
I think it is due to the tight small space and the IR is reflecting back to the cam off of the possum and the structure. I have possums visit almost every night unless they’re on vacation. If they walk up and stick their nose right in front of the cam it will white it out until they back up a bit but my cams are in open spaces.You can find all kinds of bird, wildlife and critter events posted here.