Currently, when using the search Navigator brand filter along with a price range in a VTEX Business Edition, products outside of the filtered brand can be shown.

1. Populate the search navigator controller with at least 2 brands, that is for a given category/subcategory, have at least 2 different brands listed:

2. Subsequently, filter for only Brand B, for instance, now, only the results yielded by this specific brand for this category should be shown,

3. By interacting with the price range slider, if you filter for a price, the brand filter performed on step #3 is ignored, that is, you'll possibly have products from Brand A being shown on Brand B's results.

Directly use the search API using the priceRange and brand filters simultaneously, the search response is sending the correct results https://developers.vtex.com/vtex-rest-api/reference/search-3#productsearchfilteredandordered

(example: https://{accountName}.{environment}.com.br/api/catalog_system/pub/products/search?fq=C%3A%2F1000050%2F1000155?fq=C:/1000050/1000155&P:[20830 TO 24100])