astra caching problem

Hi, we ve a new site with astra (not the pro version..), we’ve woocommerce, some products with variations.. I notice that variations are only shown when I am logged.. strange. Seems some type of caching cause a non logged user loads the page very very fast… and is not loading the astra-child theme (logged user yes). We ve enabeld the astra-child theme obviously ??

Some idea? we don’t ve any caching plugin, only astra with elementor.

Thanks!