Steps to reproduce

1. Install Ibexa DXP v4.5 
2. Add two languages e.g. pol-PL and fre-FR
3. Create two folders in the main location
4. configure two siteaccess with tree_root:

        site_fr:
            languages: [ fre-FR ]
            content:
                tree_root:
                    location_id: 67
        site_pl:
            languages: [ pol-PL ]
            content:
                tree_root:
                    location_id: 68 

1. Add site accesses to ibexa.siteaccess.list, ibexa.siteaccess.group, and ibexa.system.admin_group.page_builder.siteaccess_list.
2. Add added languages to ibexa.system.admin_group.languages
3. Change flag always available to false for landing page content type
4. Add landing page (use French) under site_fr root location (67)
5. Add a new location for the added landing page under  site_pl root location (68)
6. Add translation(Polish) to the added landing page under site_pl root location (68)

Result

When preview mode is loaded display the error: NoMatchingSiteAccessFoundException

Expected result:
A preview should be rendered properly.