According to reports, Murray is refusing to speak face to face with anyone - producers, writers, makeup artists, wardrobe or other staffers - unless they go through the director firs, reported Showbizspy.
However, even the director's not allowed to talk to or even call the actor.
"The director has to text Murray - then wait and hope that his highly paid pain will get back to him with the answers everyone desperately needs.
"Producers hope to talk Bill out of his techie communication habits - if he ever speaks to them, that is," a source said.