Hide empty terms not working

NOTE: This is a multi-site. (SFTP path is /wp-content/themes/ii), our login and the one provided here are not super admins, so we don’t have access to the Plugins in the backend.

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Hello,

I believe this inquiry is a lot like a past support ticket:
https://wp-dreams.com/forums/topic/show-only-terms-that-are-assigned-within-filters/

However, the “Hide empty terms?” toggle is there and toggled on, but doesn’t seem to be working.

When Interior is selected, only the following products should be there:
Demountable Walls
Glass & Glazing
Raised Access Flooring
Soundmasking
Underfloor Air Distribution

When Exterior is selected:
Pavers
Storefronts & Curtain Walls

Is this just a matter of updating the plugin? If so, it will need to be uploaded through SFTP. Do I just delete the current “ajax-search-pro” folder in the plugins folder and replace with a fresh download from codecanyon (unzipped first)?

Thanks!