Welcome to the forum @swainhomephone! Just so happens I had one sitting next to me and I have installed them as well.
In my opinion, and that is just as a consumer/user of Wyze products. There are two areas that I could see outside of a sealing issue around the sensor itself.
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Where the camera plugs to the base… but that has some serious depth and a really good seal.
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The USB port for an extra Camera. This is a pretty good seal as well… if properly inserted.
The base the camera sits on has no areas I could see that could seep, and the camera screw mount is sealed past the threads.
I would guess the two primary places to look would be a faulty seal at the globe, or the usb silicon stopper properly inserted at the USB port.