Categories lost if no permissions

I have the following problem or question.
A user has rights to edit page properties but the categories, that he has no permission for, are deleted after saving the record…

The user has rights for categorie1. If the page has categorie1 and categorie2, and the user saves the page properties, categorie2 is lost.

I dont know if its a bug or intentional, but how can i prevent this from happening?

Thanks for your suggestions.

TYPO3 10.4.37

Hey Evelin,

this sounds weird, never had that before working with editors and different category rights.
Are you sure that no other extension is manipulating there?