Well, I don't know... It seems to me as if the epg data are not fetched correctly.
Several years ago (*) Jaroslav wrote
Just a note, the correct epggrab shutdown sequence should be like:
@2014-11-21 11:19:45.000 [ DEBUG] epggrab: grab done for 235.10.10.16 in Tralala (timeout)
2014-11-21 11:19:45.000 [WARNING] epggrab: EIT: DVB Grabber - data completion timeout for 235.10.10.16 in Tralala
2014-11-21 11:19:45.000 [ INFO] subscription: 0002: "epggrab" unsubscribing
2014-11-21 11:19:45.000 [ DEBUG] mpegts: 235.10.10.16 in Tralala - stopping mux
2014-11-21 11:19:45.000 [ TRACE] mpegts: IPTV - flush subscribers
2014-11-21 11:19:45.000 [ TRACE] mpegts: 235.10.10.16 in Tralala - flush tables@
_... not only one "unsubscribe" line..._
but I can't find anything like this within the log.
(beside the OTA EPG I also use offline epg-data getting with xmltv, so I don't know from which source the displayed data comes from)
(*)
https://tvheadend.org/issues/2467#note-4