How to disable FPD on certain WooCommerce products???

Hello,

On our website, we have both normal WooCommerce products and some FPD products where the user may customize. However, on our normal products (where we don't want FPD) the "Customize" button is still visible and the UI is being loaded!

So how may we disable FPD where we don't need it? I have checked Individual Product Settings and there is no option to simply disable it for the specific product.

There are no FPD-products selected and no category for either desktop or mobile. I've created multiple new WooCommerce products and UI is still showing.

Or have I missed something? This has to be the most basic thing.

Thanks.