ViewShowOnlyUnread is not working fine

Hi,

I have a view with action button having a formula @Command([ViewShowonlyUnread]).

The view has 2 categorized columns.

When the @Command([ViewShowonlyUnread]) = True, or when it is clicked on, and I try to access the docs by opening the categorized columns the value of those 2 column dissapear.

The categorized columns dissapear. Can someone help WHY??