Apple’s Spaceship campus seemed to be moving along swimmingly, at least based on some of the images that have shown considerable progress over the last year or so. However, a new report tells a completely different story.

The Silicon Valley Business Journal said this week that Apple is firing DPR Construction and Skanska USA, a joint venture that was behind building the new Spaceship campus.

An email obtained by the news outlet said the contractors, reportedly in charge of the “core and shell” of the new campus, “were unable to come to an agreement during negotiations for the revised scope of work for [Apple’s] research and development campus in California” and “will transition completely off the project in the next several weeks.”

Apple was not specifically named in the email because the agreement is confidential but Silicon Valley Business Journal said the contractor has been named in Cupertino permit records.

Silicon Valley Business Journal didn’t explain a reason for the breakdown in Apple’s relationship with DPR Construction and Skanska USA, but AppleInsider said the Spaceship campus is “$2 billion over budget” and “more than a year” behind its planned schedule.