Hi Jan
We have spent hours on this. We can’t replicate what’s going on, but I will tell you what IS going on.
Our plugin encodes the HTML characters for the URL bar. A browser will render them as they SHOULD look. But, in your case, something else, probably another javascript, is grabbing that encoded URL and encoding it again, making it unreadable by the browser (hence what you see). From there on it is downhill; nothing will work.
In the first instance, we need to get you the latest dev version of the plugin (2.2.1). Can you give me an email address to send it to? Installation instructions:
Installation instructions:
1) Deactivate S&F in WP Admin Plugins page (do not delete, otherwise you will lose your search form)
2) Via FTP, delete search-filter-pro folder from the wp-content\plugins folder on your server. If you wish to keep the folder, just in case, do NOT rename it, instead move it UP a folder into the wp-content folder.
3) Unzip the file I will have sent to you.
4) Upload the search-filter-pro folder to the wp-content\plugins folder on your server.
5) Activate Search and Filter plugin in WP Admin plugins page