Will & Grace star Megan Mullally has abruptly left the Broadway revival of Terrance McNally’s Lips Together, Teeth Apart after two weeks of rehearsal, allegedly because of disagreements with director Joe Mantello, the AP reports.

“We were surprised and disappointed that Megan Mullally had to withdraw from the production immediately in breach of her contract,” Todd Haimes, artistic director of the Roundabout Theatre Company, said Wednesday in a statement.

Mullally’s replacement has not yet been announced for the show, which was set to begin previews April 9. Preview performances have been postponed but the April 29 opening date will remain, as will her castmates Patton Oswalt, Lili Taylor, and David Wilson Barnes.