Animation crew member declined

Hello once again. I have another issue. I recently have seen the recent SpongeBob movie, The Search for SquarePants in theaters just now. I noticed that one of the storyboard artists involved in the film in the credits just happens to be Cow and Chicken creator, David Feiss. So when I tried adding him as a storyboard artist in terms crew members, they declined it. Due to the film still being in theaters currently, I can't share a photo of evidence right now, but as I was watching the credits, I indeed actually see his name in the credits. So can you fix this?

Link: (251231-224658-531000)