Bundle products not showing in shop filters (Woodmart theme)

Hello,

We noticed that bundle products do not appear in shop page filters even though their individual items match the filter.

Example filter page:
https://greekbeershop.gr/shop/?filter_brewery=notos-brewery

Example bundle product that does not appear:
https://greekbeershop.gr/product/blond-ale-style-combo/

The same product displays correctly on its single page or on category/archive pages.
https://greekbeershop.gr/brewery/notos-brewery/

We are using the Woodmart theme. It seems that bundle products are not properly indexed in WooCommerce for filtering on the shop page.

Could you please advise if there is a solution or a workaround for this?

Thank you

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