I do some separations for a local screen printer. I take no responsibility for their art as seen in the linked EPS file (it is in a ZIP) ;)
In version 9, the spot colors are recognized:
In version 10,only the first spot is seen and the CMYK channels,which contain no data, are listed:
This seems like something that needs fixed. Also noted that in V9, in the Setup dropdown, I can choose Process & Spot. Not so in v10.
Mike
Linked File: