I’ve been having a similar issue, but I’m on 9.0.3 stable on my N2.
I use an external TVH 4.3-1802 server, and had some issues when I was on the nightly. Namely, I’d get no EPG at boot up. Turning on “wait for network…” fixed it.
But in recent weeks it’s returned, and it’s here on the stable version. TVH boots up with no EPG or recent channels list and no channels listed in the Channel Manager. In MyPVRGuide however, I can access my channel groups. But still no channels themselves show up if a group is selected.
If I clear guide data from the settings, the guide data reloads and I get my EPG and recent channels list back, but guess what? I lose my Channel Groups. Both from the EPG page as well as from the Group Manager.
If I reboot, the guide data’s all gone again and I need to clear the guide again to get my EPG back.
Note; this only happens on TV (not Radio served by the same TVH server), and I can access my recordings with no problem, regardless of what state the EPG is in.
This happens on all TVH client versions I’ve been able to download (22.214.171.124 - 126.96.36.199)
I’ve done the same as @Compent (clear everything, uninstall the plugin and reinstall), but still the problem persists after a reboot.
This also isn’t a skin problem, as it also occurs with JSON calls and anything that relies on it (Web UIs, Smartphone Kodi Remotes, etc.).
There’s nothing untoward in the logs that I can see, even with both PVR and EPG components turned on. There’s some sort of conflict between channels and groups, and it’s causing the TVH client to barf.