Using just OTA programming with two HDHomeRun quad tuners in my system.
I had to reinstall everything on the Linux system where my Channels DVR resides. I reinstalled Channels and got things up and running as they should. Then, after a few days, while no recordings were being made (about 3 AM this morning), I shut down the computer (with shutdown -h now, so it would be a clean shutdown) and moved it to another room and rebooted. Everything was okay, including guide data.
Then I looked a little while ago and saw there was no guide data. So I went to Settings and picked "Refresh guide updates." No joy. Tried "Re-download entire guide." Still nothing. So I tried "Delete and recreate database." Still nada. Each time I would check On Now, Guide, and DVR. Nothing on the guides, just the stations listed and no programming. No "Up next" in the DVR.
Even after trying all three actions, I could still see, "Last refreshed 16 minutes ago" by the control to download the guide. It's like it has no idea it's just been refreshed.
And, of course, Channels has now missed most of a Sunday of recording.