Robert Kirkman isn't working on the "Transformers" movies, despite earlier reports that he'd be in the writer's room planning out future installments in the series.

Speaking to Collider, Kirkman revealed that he spent one day in the writer's room, before exiting due to health issues. "I have to say, I was only in that room for a day before I found out that I was having my throat surgery that kept me out of Comic Con," Kirkman told the site at the 2016 SXSW Film Festival.

Producers Akiva Goldsman and Michael Bay had selected Kirkman to contribute to the next round of "Transformers" movies, along with Matt Holloway and Art Marcum ("Iron Man"), Jeff Pinkner ("The Amazing Spider-Man 2") and Zak Penn ("The Incredible Hulk").

Despite his exit, Kirkman had good things to say about the direction of the "Transformers" franchise, saying, "I have heard from the people that are in that room there are a lot of amazing 'Transformers' things coming, and I’m very happy as a fan to see what comes from that."

Alongside Goldsman and Bay, the future "Transformers" installments are being produced by Lorenzo di Bonventura and Steven Spielberg.