[NTG-context] Referencing a Figure

I am trying to reference a figure, and the results are not as expected. Here is my snippet. \placefigure[fig:myfigure]{A beautiful circle}{ \startMPcode draw fullcircle scaled 72; \stopMPcode } Isn't Figure \in[fig:myfigure] beautiful? When this code renders, the text says "Isn't Figure ?? beautiful?" How can I get the correct figure number? Thanks, Troy