“Select” drowpdown box doesn’t scroll to end on shop page

Hello,

I need to use a dropwdown for 12 variations. It works well on the product page but on the shop page it doesn’t show all variations. The dropdown simply doesn’t scroll any further at some point.

The variations go up to 30 inch, the dropdown only show up to 22 inch: https://prnt.sc/w9fao5

What can I do?

Best regards and Merry Christmas,
Stan