Shared Outlook Calendar won't show up on Desktop app

A person in my work has shared an Outlook Calendar with me. I got an email and accepted it.  I can view this calendar if I sign in on the Web version but it will not show on my desktop app. I have updated to the most current Outlook. I have shut down Outlook numerous times.  I have restarted my Computer.  I have made sure that the Turn on Shared Calendar improvements is selected.  I have tried going to Add a Calendar and searching for the persons name that shared it with me. This is not this person's main calendar so this does not work.  I can't find anymore suggestions online as to why this calendar will not show up