Hi @JohnK ,
The taxonomy filter will be disabled if you land on the same taxonomy archive page. This is the current behavior in Bricks to avoid unexpected query results when combined with different filters on the same page. We will improve this.
For the JS error, can you please provide admin access for us to investigate? Please send admin credentials to help@bricksbuilder.io and include this forum thread as reference.
Regards,
Jenn