Do certain products not show the collection links underneath the product?

I was under the impression that all products within a collection, would show the collection underneath the product.  But I could be wrong, just let me know.  Anyway, link to product:  https://www.zazzle.com/forced_family_fun_christmas_humor_sweatshirt-256416369601526431 

And the collection that it says it’s in (and shows that it’s in) link:  https://www.zazzle.com/collections/forced_family_fun_christmas_by_3cattails-119112874464329503 

Just asking because I see “other products you might like” right under the product, and if we’re going to be pushing other products instead of our own, well, that’s a bit unfair isn’t it?

@LauraLee   the link to the product is no longer available

and that could be the reason it’s not in the collection 

and your collection only shows 8 products to me