default.pa combine sinks

[mfauvain]

Hi, I've built pulse-audio raop2 following your instruction and it works very well. I stream music to airport express old gen, new gen, even to a BangOlufsen beolit and shairport-sync boxes. All this using module-raop-discover.
I then use combine-sink with different sinks and everything combines well when I run pactl load-module module-combine-sink from command line . However when I add the exact same line load-module etc.. to default.pa, it get an error thats says Invalid slave sink.. with the name of the sink (with the right name for the sink..) Any idea?
I tried to sort this out, removing module-raop-discover from default.pa and instead insert load-module module-raop-sink server=... and it then fails with failed to parse protocol argument...
Stuck really. Any help would be much appreciated.
And thx again for this well done pulseaudio-raop2.