Thank you for the fast response.
I try to duplicate a product to multiple languages with the WPML translation management.
it works After duplicate and translate it with the Woocommerce Multilingual.
But this will take a lot of time and for now it can be translated all in the same languages.
So I prefer to use the WPML translation management, where it is possible to duplicate multiple products to multiple languages.
Hopefully you know or can detect what the issue would be here.