I'm having trouble saving/removing categories to a page. 

The page I'm trying to add my Category to already have 8 categories.

And then I add the category "Bild"like below: 

Everything looks fine in the Edit view. 

But when I publish the page, the category isn't there anymore and the page's categories gets displayed as in my first image, without the "Bild" category. 

I attached a method to the SavingContent Event in (ContentEvents.SavingContent += CheckCategories;) to see if the category was there, but it seems that the category is not even reaching that stage. 

The same goes for when I try to remove a existing category, in other words, I can't update categories at all, regardless of page type. 

Note: I was using 9.8.0.0 then updated to 9.8.2.0 to see if the problem went away with an update but unfortunatley it didn't. 

Anyone have some information regarding this issue or have encountered a similiar problem before? 

Thanks in advance.