Tvheadend

Hi,

I have recently updated from 3.x to 4.x on my Debian based Raspberry Pi2.
Everything went great until that update and now strange things are happening.

My setup:
- 4x LNB (DVB-S @ Astra 19.2e)
- RPi2
- std Receiver

When I turn on tvheadend, I can suddenly only watch a handful of programs. Not only on the TVH side but also on the standard receiver.
My wild guess is that there is something wrong with the voltage that is being sent to the LNB... maybe it is just a simple setting, I just don't know

Is anyone able to give me a hint on what setting I have to chew on?

Thanks!