Much has been made about Brenda Chapman being the first female director to helm a feature length project for Pixar with her 2012 animated adventure Brave. Now it seems that particular milestone will not be reached, as Cartoon Brew reports Chapman has left the famed CG-animation studio for unspecified reasons.

Reliable sources confirm that Up storyboard artist Mark Andrews has taken over directorial duties on Brave for Chapman. Brenda is said to have been pushed aside from full directorial duties a while ago. And that she was officially off the project this week.

There is no official word from Pixar that Mark Andrews has taken over the project, and there is no particular reason given for Brenda Chapman's departure at this time. Brave is still aiming for its announced release date.