Hi,
Thank you for the details!
– Is the issue happening for the live search, or the search result on the results page?
– Can you please post a link to a page, where the plugin search bar is visible, so I can test the issues? I tried the ‘researchers’ page, but that seems to work okay, when I’m trying the filters: https://i.imgur.com/HkY6K8t.png
– Can you please also add temporary back-end and FTP access details, so I can check your search configuration, as well as debug any issues if neccessary?
Thank you very much!