Hello,
After upgrade from Raw (some old version) to Enterprise 1.6.0p6 now in host / service view is showing up column Site Alias (in previous
version it was called Site).
Issue is, now when edit view, and add filter in dropdown list still exist SITE as value to choose as filter but there is no SITE ALIAS
value so I can not filter in view anymore 
to show only one site.
Regards
Nenad