Any info on why...

Hi!
I was hoping maybe someone had some information about my question: Why didn't Christopher Daniel Barnes, who voiced Prince Eric in Disney's The Little Mermaid, return to his role as Prince Eric in the Little Mermaid II: Return To The Sea? I checked the Internet Movie Database (www.imdb.com) and they have him credited for voicing the Prince in Cinderella 2. Just thought it was odd... The Little Mermaid II just wasn't the same without him! Perhaps it was a schedule conflict or he just didn't want to return to that role. Any information would be greatly appreciated! Thanks!