Filters not applying

it seems that problem could not be strictly relative our plugin, but due to recent version of WooCommerce. It seems to be related to the new attributes lookup tables introduced in 6.3.

You can find lot of topics about that on official WooCommerce forum on wordress.org, like this one.
https://wordpress.org/support/topic/filter-by-attribute-is-no-longer-working/

We invite you regenerate this, go to WooCommerce -> Status -> Tools and click on:

WooCommerce transients
Product lookup tables
Term counts
Update database
Regenerate the product attributes lookup table
Clear Product Filter transients
Clear Product Filter sessions

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