@madppiper I looked at the demo site and reworked my catalog & category set up to be Amsoil Catalog --> Oil, Air Filters, (children), etc.
On my shop page it shows OIL on the main page but then comes up empty when I click on it and definitely does not offer any of the 16 other children categories. Oddly enough I can search for all my products and they show up but not under any category.
I have a few dozen across all categories marked as not requiring inventory for testing purposes.
I have the children listed child under Amsoil Catalog (as the parent).
I have also restarted scipio multiple times in case it was necessary for the changes to take effect.
What else should I look at?