Multiple pitch tracking with fiddle~?

Hello,

I am trying to track multiple pitches with fiddle~. As it says in the documentation, I am adding the right object argument, and putting 2 or 3 creates extra outlets on the object. However, those outlets are not putting out any kind of meaningful extra data. In fact, one of them acts as a sinusodial component list (instead of the outlet that is supposed to do that), and the other one puts out a constant 90.xxxx signal (I am guessing dB?).

How can I get multiple pitches with fiddle~? Where are they supposed to come out from???