Tagging of Groucho Marx on a photo from the movie "room service" rejected

Hi

a tagging I've made was rejected, and I'd appreciate it if I can get the reason.

I tagged the following photo https://www.imdb.com/title/tt0030696/mediaviewer/rm3378145024/ in which Groucho Marx is in the top left (left most person).

However, the edit was rejected #220224-080019-142802 for him only (tagging Chico and Harpo was approved).

Thanks in advance

Sigal