Hello,
Thank you for reaching out to us.
Could you please test if the same issue occurs when using a default theme, such as Storefront? (Appearance > Themes).
If the behavior continues regardless of the theme being used, it suggests that the problem may not be related to the theme itself. In this case, we would recommend you contact support of woocommerce plugin – https://wordpress.org/support/plugin/woocommerce/
Warm Regards,
The 8Theme Team