Tvheadend

Hey everyone,

I've used TVH since multiple years together with Plex to record and stream DVB-C and all channels always got their numbers auto assigned. Now we installed a satellite dish (Astra 19.2E) and I used a TBS6985 that had issues with my server (not recognized after reboot). Because of that issue I switched to a DigitalDevices DuoFlex S2. On both cards I was able to recieve all channels but also on both cards I never got channel numbers assigned, so all channels are on 0. To be able to use channels in plex they need different channel numbers. Now of course I can assign the numbers by hand, but shouldn't tvheadend get those numbers by itself? A TV connected to the same dish gets all channels with the common numbers.

My setup:
Tvheadend 4.3-2030~gca756e3f7 in linuxserver/tvheadend:latest docker on Unraid
Location: Germany

What I tried so far:
- normal scan and mapping all services
- normal scan and only enable a bouquet

Am I doing something wrong? Is it expected behavior on DVB-S?

Thank you in advance!