oscam emu + cccam

I want to use the combination oscam_emu with cccam, and to be able to decode the biss channels through oscam_emu.
I cannot figure out how to make it work. I removed the "constcw" cccam file, but the biss channels dont work. If the oscam_emu is running alone (without cccam), then the biss channels are working.
What am I doing wrong ?

There is a "#" in front of the line above in cccam.cfg, like this:
#STATIC CW FILE : /var/keys/constant.cw

And I also deleted the constant.cw file in /var/keys

Does anything else have to be configured for oscam_emu and cccam to run simultaneously ?

Does the Duo2 image know to try all emulators when moving to an encrypted channel ?