So, this evening, I force stopped the FireTV app, and deleted the cache and data. Then I went and deleted and rebuilt the database on the server. Once I started up the app again, I could finally see the WGN America logo, and see the program info in the app. However, once I added my DVR IP address back, the channel info disappeared again, and I can’t see any guide info for the channel.
As a test, I quit the app, and cleared the data again. After opening the app, I can see the guide info again. But sure enough, as soon as I add the DVR back in, the guide data disappears.