The sizzle bus will not pass any audio for me either.  No warnings about missing plug-ins.
I really want to try this thing :)

The problem I'm having is...I'm using the Sizzle bus for one song on one track (Imagine a mastering setup with different songs on different tracks). When I mute the track the signal is still passing through the sizzle bus making it difficult to do comparisons (I have to mute the track and bus). How can I route the sizzle bus signal to the track instead of the master bus?

clintmartin
The problem I'm having is...I'm using the Sizzle bus for one song on one track (Imagine a mastering setup with different songs on different tracks). When I mute the track the signal is still passing through the sizzle bus making it difficult to do comparisons (I have to mute the track and bus). How can I route the sizzle bus signal to the track instead of the master bus?

Set up a bus to be routed from whatever track sent to the master.  I've had no problems.
 
I realize some may not find this useful, depending on what you have, but I was very impressed how subtle & dynamic it is.  Craig's still crankin'... 
 

declan
I realize some may not find this useful, depending on what you have, but I was very impressed how subtle & dynamic it is.  Craig's still crankin'... 

Thanks for the props! It's not intended to be an "effect" where you can hear it working. It's supposed to be one of those processors where you notice something is missing if you bypass it.

at 62, are we supposed to hear it??  :-D.   Soloing the buss, makes me wonder if I should add it or not...   Of course I compressed the bee-gebbers out of it and dumped any low end, so I COULD crank it and hear it when blending....but.....?? I love the red GUI color, for sure!

Well, I can hear it, and I'm not a youngster  
 
The Sizzle Buss synthesizes extremely high frequency harmonics. In isolation, they do not sound even remotely natural. They are meant to sit like a thin veneer on top of the existing audio. Again, if you can't tell it's there when enabled but hear something missing when it's bypassed, you have the right balance.

I think it sounds great, but I guess I'm trying to do something that's not possible (per my post #12).