New subcategory is not visible in YMM selector

Hello,

Last week,

I created a new sub-category with some new products in it.

I now have the following problem:

I have translated my site bunkerparts.nl into 5 other languages and use the extensions bunkerparts.com, bunkerparts.fr, bunkerparts.de, bunkerparts.es and bunkerparts.it, for this translation I use WPML.

Now the new category is shown in the base language in the YMM selector, but in the other languages the category is not shown.

What is going wrong here?

The page I need help with: [log in to see the link]