Title displaying as "upcoming"

https://www.imdb.com/title/tt28073224

This is displaying in the "upcoming" section of the cast members' filmographies.

My understanding is that this usually happens when there is no release date attached, but there is a (non-future) release date on this title, and I have submitted a "production status" update of "released", which was accepted yesterday, so I can't see any reason why this might be happening.