Sending, receiving, and organizing email in Outlook.com
Same issue here.
This current thread is misfiled under "Outlook / Windows / Classic Outlook for Windows / For business". I cross-posted it in a reply to this relevant thread in the correct category: https://answers.microsoft.com/en-us/outlook_com/forum/all/cant-view-linked-calendar-on-web/e40b7cf8-a302-44b2-83e2-f97f7e3ebdf1