using your build "HTS Tvheadend 4.3-1906 ~ LibreELEC Tvh-addon v18.104.22.1684" on a Raspi 3B+ I am experiencing a maybe trivial problem.
Setup of TVH for Astra Satellite went fine, I detected muxes and a lot of services and mapped them to channels. I could watch TV in the Configuration/DVB inputs/Services tab by pressing the play button. EPG also populates fine.
However, in Configuration/EPG_Channels/Channels absolutely no channels appear. I also cannot add anyone.
I assume in this tab I would have to map channels to channels numbers or I could select a subset of all channels for my EPG. But no chance to add or select anything. This tab is and stays completely empty.
Anybody can give me a push what is going wrong?