It's probably because of the modifications I made through the ticket. I'm not sure if I can keep fixing the issues, as I'm afraid always something new will come up.
As I have mentioned before, there is a good chance that making a category and post type filter non-exclusive will probably cause huge problems. Taxonomies are attached to post types, and currently the plugin tries to “guess” which taxonomy term matches which post type even if it's not specified, or it's null value.
I will of course take another look, but as I said cannot promise anything. I cannot guarantee proper functioning for a customization.Best,
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