How To Programmatically Set A Course Advanced Fields

@Zachary_Trabookis have you looked at this

Try to add this to your LMS setting

SEARCH_SKIP_SHOW_IN_CATALOG_FILTERING = False
Long conversation can be found here

I don’t if that exactly related to your case, but sounds relevant.and the above suggested setting is in tutor by default since Nutmeg, probably this is why @sambapete doesn’t have same behavior