This only happens when using the web player on plex.tv (version 4.65.0), and works as expected when accessing the bundled version (4.62.1) on the server.
Same issue here after server update. No Live TV / DVR is now showing in Plex and my scheduled recordings are gone. What are you folks playing at (@Plex).
Edit: After another reboot and guide refresh, it seems to be returning. Crisis averted.
Still an issue here. Cannot open Device Settings from web client or smart tv client. Only works from Plex for Windows which still has the old layout for DVR devices.
Tried the reboot and guide refresh as suggested, but it had no impact.