Echo Show 8 not displaying

[vmsman]

I have several Reolink RLC-420 and RLC-520 cameras that work great on both the Echo Show 10 1st gen and 2nd gen as well as on the Fire TV 4k Stick as long as I am using the Monocle Gateway. Here’s an exmple of some of the cameras.

Here is the detailed settings screen.

The settings above have never worked on an ECHO SHOW 8.
Any suggestions?

[XopherJ]

I had to use the sub feed instead of main to get mine to show on the Show 8.