I just noticed another bug with the filter, one of my product attribute archives only shows 3 products instead of over 1800 products. As soon as I disable the plugin, everything shows up as it should.
What's up with that?
I have a feeling it's because the attribute term has the same slug as another attribute's term. This shouldnt be an issue if you use the attribute term's ID. And it isn't an issue when the plugin is disabled. With default WooCommerce this works. Please fix this to use the attribute term's ID and not slug.