Tvheadend

All my pipe:// muxes started (can't exactly tell when, the problem wasn't there in the beginning) to generate two services.

If i'm adding a mux with Mux&Service Name set to "ABC", i'm getting in the Services Tab with the Name CW and Service ID 10929 (the same ID on all my channels, using the same avconv build from ubuntu-trusty), this Service is not working. The second Service has the Name "Service01" (which seems to be the default from avconv) and Service ID 1, this one is working fine.

https://tvheadend.org/boards/5/topics/15853?r=16339#message-16339 at least confirmed the behavior, András is also using avconv.

As i didn't knowingly update the avconv, but maybe ubuntu did, i'm not sure if this is a bug in tvheadend, one in avconv or just a missing parameter. I at least tried settings -metadata service_id=1 in my script, but it didn't change anything...