Newly created object pages aren't displaying issue appearances

This is what I see after assigning appearances to a newly created object:

And after clicking "View all":

I've noticed this on some of the other recently created object pages as well, but not on older ones.

Started happening the second or third week of January, looks like it was when something bigger broke as the page histories and page contributors were not added to pages or disappeared, the issues stopped being added after that.