Why is localization option not apearing in game build?

So I added localization for 3 different languages and added the option (combo box) to change between them in game. It works like is supposed to in the Unity Editor but when I build my game the combo box appears without any language option (empty). I've tried a bunch of different stuff like changing the addressables and even remade the combo box just to make sure even though I knew that wasn't the problem.

I appreciate any help... Thank you in advance =)