We have an issue that occurs when filtering by layered navigation. It's 3rd party. The issue is (at least at our end) very easy to reproduce.
Our catalog structure is pretty simple, having two major categories defined in admin back-end:
- Men (
website.com/browse-men-products) - shown inside mega menu
- Women (
website.com/browse-women-products) - shown inside mega menu too
These Product Categories are listed in our layered navigation as 'Filter by Category', which looks like this:
Clicking on any category (i.e. Watches) filters just fine.
But when trying filter more by Brand, it throws a 404 not found error. Note that filtering the other way around, like brand first (Aigner) and then category (Watches) works perfectly.
We noticed that this issue happens only when clicking brand after category via layered navigation. Its respective 404 link looks like:
The corresponding successfully working link is:
Use Web Server Rewrites: No Index was performed recently.
We thought we'd look into the 3rd party layered navigation (which lost its support because they shut down business), but we don't want to yet.
Thank you for any hint