I installed OC10.0.2.1 from scratch. Added a few users within OC, installed some apps like contacts, calendars, passman and so on. Everything works fine including syncing over all my devices (iOS, Windows, Linux etc). But when I login with a "normal" user and start looking at the calendars, all calendars shared from another user are unselected. Everytime I go to the calendar screen I have to select the shared calendars, I want to see. The calendars of the logged in user himself are automatically selected and visible.
The normal user is within the same group as the user, from whom I want to see the calendars. Sharing within the related group is, as mentioned above, also active.
Is that a bug ? I could not find a related hint or post, nor discussion to that issue...