Pack Leader Not Showing His Pack.

I'm playing on rotation and made one of my sims the alpha of The Moonwood Collective.
When I play other households, that sim is listed as the pack leader. But when I go back to the pack leader's household, the pack doesn't show in the Social Groups tab. It tells me he is not currently in a pack. I can click on The Moonwood Collective button and it shows me that he is the leader.
Is this a glitch... or?