Go to your products and check if those tags are created and how they are created. Go to your Products -> Tags and check if those tags are created there as well and how many products are applied to them.
Also, try to change the VAR names, from Filters -> Settings -> VAR/URL prefixes/names. And then try it.
Thanks, Victor. We don’t have any products, only posts. The Filter Set is working for filtering posts by category, but not working filtering posts by tag.
No problem. I’ve attached a screenshot of the Posts > Tags screen, as well as the Filter Sets > Specific Filter I created, and a screenshot of the Posts > All screen so you can see that posts are indeed tagged.
Hard to tell, but here is what can you do to find the issue 100%. First of all clean all of the cache turn off object cache and so on. Then got to the filter set settings and hit update. Check if it is working correctly. If not. Try to turn off 90% of the plugins. And change the theme to the default one. If this all won’t make it work. There is not much we can do as it would require credentials at this point. And by the rules on this forum, it is not allowed.
Well, it’s fixed now π All I did was edit the filter set. I changed the “VAR name for URL” field for tags so that it didn’t match the “VAR name for URL” field for categories. I guess that created some error. Just posting here for future ref in case it helps anyone else out.