Production has been shut down on History’s military action drama “Six,” as Joe Manganiello’s role is being recast, Variety has learned exclusively.

Manganiello had to pull out of the project due to a health issue, which sources say is a very manageable pre-existing condition. The source adds that the actor is just fine, but given the physical demands of “Six,” he will not continue shooting.

There’s no word on when production will resume, as the eight-episode series is on hold until a new actor is found to replace Manganiello.

“Six” follows the brotherhood of Navy SEAL Team Six. The “True Blood” alum was set to play Rip Taggart, a onetime leader of the SEAL Team Six squad who now patrols an African village to protect its residents from Boko Haram.

“Revenge” alum Barry Sloane, Dominic Adams, Edwin Hodge, Kyle Schmidt and Juan Pablo Raba are starring in the History project.

The Weinstein Company and A+E Studios are producing the drama. William Boyles (“Cast Away”) and military special operations vet David Boyles are writing the series, and they are exec producing alongside Harvey and Bob Weinstein, Alfredo Barrios Jr. and George W. Perkins.