Woocommerce Delivery time in English translation of the shop cannot be updated

Hello, I try to update the delivery time of the products including the product variations in our shop.
There are 2 problems
1. The changes I made in the German version are not automatically applied to the English version, even not when I click the WPML update button.
2. When I change the delivery time of the English version manually it is still not displayed at the frontend

We are using WPML. In the German version the update of the delivery times is working. Then I click the update button for the English translation and safe everything in the WPML translation editor. But the new delivery time is not updated in the English version. Then I change manually to the English version of the product page and change the delivery time there, it is correct in the backend but at the frontend I still see the old delivery times.

It is essential that the changes in the delivery time are automatically applied to the other language version, at the latest when you press the WPML update button. Otherwise you have to update all products manually in all language versions.