title: Empty result from API call https://graph.microsoft.com/v1.0/users/[upn]/calendarGroups/[id]/calendars
body: <p>I succeed with all calls to <a href="https://graph.microsoft.com/v1.0/users/[upn]/calendarGroups/[id]/calendars" rel="nofollow noreferrer">https://graph.microsoft.com/v1.0/users/[upn]/calendarGroups/[id]/calendars</a> except when I send the group ID of the 'People's Calendars' built-in group. By the way, that group gets populated via 'import calendar'.<br /><br /></p>
  
  <p><a href="https://i.stack.imgur.com/aA7g3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aA7g3.png" alt="enter image description here"></a></p>
  
  <p>Does anyone know what I might be doing wrong? Or is this known behaviour for that group?</p>