In previous versions of Acrobat the Convert Colors dialog could make cmyk to cmyk color conversions from the source profile set in the preferences to the chose destination profile.
This is broken in Acrobat X, but worked great in Acrobat 9. When converting to an Output intent the embedded output intent profile changes, but no actual conversion of the color numbers occurs, so the Output Intent profile is now mismatched.
Why does this no longer work?