I have done everything I've found here and elsewhere:
- All products are enabled
- All products are In Stock with 1+ quantity
- All products are set to Catalog, Search
- I have reindexed multiple times, as well as tried reindexing via shell
- I have cleared cache multiple times
- All products are in active categories
For example, in the admin panel, a specific category shows 662 products, but on the frontend it only shows 337. It's becoming annoying because some filterable attributes only show a few items when used, despite there being many more.
The items are there when searched for using advanced search. They are not there when using attributes to filter for them.