The problem is when VIPER added the Tall Pines Tower (Welcome) site they assigned the primary control channel to be 853.5625 MHz, which also happens to be an alternate control channel for the WS/FC system.
If you remove the 853.5625 frequency out of the WS/FC system everything will work properly.
I initially thought my scanner had totally lost its mind until I figured out why I was hearing VIPER traffic on what I thought was the WS/FC system.
Firefighter / EMT
Amateur Call NC4AB / Echolink Node 5761