Nate and Redman song taken off Biggie album

The song titled "The Funk" which was supposed to appear on Biggie's Duets album, has been taken off and replaced with a song called "Just a Memory" with the Clipse. The rest of the tracks in the tracklist that was posted earlier are still going to be on the album. I have no idea why that was the ONLY song to be scrapped, but that's what it is.