Calendar of public folders

Hello guys,
I’m currently testing eM Client 8.2 with our Office 365. We have common calendars in shared folders for the whole company. I added them in Menu\Accounts\Exchange Web Services\Public folders. After sync finished they are displayed in the calendar tab but without calendar entreis. If I add a calendar entry in eM Client, it is synchronized immediately an can be shown in Outlook. And if I delete this entry, in wont be deleted in eM Client. In tab “Access Control” are the correct permissions allowed.
Can anyone help me please?