Using classic Outlook for Windows in business environments
@SJones1100,
You can re-enable the copy meeting capability, Outlook blocks copying meetings with “Copying meetings is not supported.” - Microsoft Support.
I created a registry key file you can download, EnableMeetingCopyInOutlookDesktop. Download EnableMeetingCopy.reg and double click on it to add it to your registry. After you add the registry key restart Outlook to start copying meetings again.