I'm displaying a filter with taxonomies in a sidebar on some CPT archive pages.
But because some taxonomy terms are shared between different CPTs, all taxonomy terms are visible in the filters.
For example, I have a CPT "press release" and it's using only the taxonomy terms 2015 and 2017. A "press article" is using the terms 2016 and 2017. On the press release archive all the year would be displayed no matter the taxonomy term is used or not.
Thank you for contacting Toolset support. You can try the option in Custom Search Settings >> Show only available options for each input -- please see attached screenshot.
To enable “Custom Search Settings” section, please click on “Screen Options” at the top right of the screen while you are on Edit WordPress Archive page.