[Zen Cart] Missing my next/prev buttons?

[inveo]

We can not tell you anything more specific. It is caused by some of your Zen Cart customizations.

[robinsonjas]

Also, my categories don't stay expanded ...acts like it bypasses the path to the product w/ a shortcut from SEO url?

[robinsonjas]

This item has the buttons, could it be my cache need to be cleared and rebuilt?
http://bbmetalfab.com/metalart/bull-rider-wall-decor-15.html

[robinsonjas]

I figured it out
The handful of products that were showing the buttons were ones I manually added in early stages of store. I went back and dug into the products table comparing these products to the others and found that when I used EZ Populate it did not tie the 'master_category_id' field in the table. I ran a quick SQL statement and fixed the 'Book Ends' category.
I will do the same for the rest.
Thanks