Xfinity app on fire tv

Hello, I have multiple fire TVs, and use the Xfinity app. I have logged in multiple times on my MAC and set my favorite channels. However they are ALWAYS erased within a hour or 2, and always defaults to 4 channels, NONE of which I look at. I have tried over 30 times, even rebooting the fire TVs etc..

Can anyone give insight on this?