Los Angeles, CA β A minor but intriguing ripple has emerged from the otherwise calm waters of the beloved sitcom The Big Bang Theory.

Chuck Lorre, the acclaimed co-creator of the long-running CBS hit, has reportedly lodged a complaint regarding what he perceives as “missing” details concerning the character of Penny, played by Kaley Cuoco.

While specific details of Lorre’s complaint remain under wraps, sources close to the production suggest it revolves around aspects of Penny’s backstory or character development that may have been overlooked or altered during the show’s extensive run.

Fans of the series will recall that Penny’s last name was famously never revealed, a running gag throughout the show’s twelve seasons.

It’s unclear if Lorre’s complaint is related to this particular detail or other facets of her character’s journey.