Calendar Location user not visible

[bertbert]

I have a normal user and a location user with auto-accept appointments.
The location is a shared calendar for the normal user (admin rights) and the normal user can see the calendar of the location (but is completely empty).
The normal user creates an appointment and invites the location also. The user receives a mail from the location but I see no accept button (maybe that is correct). The problem is that I do not see the new appointment in the location calendar (and is staying empty). Do I something wrong here ?

Above is the situation with the webmail version. For the desktop version, if I log in for the location user, I even cannot see any calendar sharing property and I dont see the persmissions for the normal user. So this is an inconsistency between the web and fat client.