I am trying Art Papers on my Pro-10. When I tried the Hahnemuhle PRMetallic, the ICC installed show up in the Development Mode "Soft Proof" BUT when I get to the Print Mode, it is not available from the ICC list.
You may need to re-add it if you don't see it in your list of choices in your print module. You'll have to click on Other: and then navigate to the location on your drive. If it's missing in that folder too you might be able to locate it doing a system search or simply download it again.