Recurring Outlook Meeting in Desktop App Windows not allowing single Zoom Mtng

Hello Hive, 

Our Executive Assistant has created a recurring Outlook meeting and is now trying to create the Zoom meeting for one event through the Add-in.  According to her, she used to be able to add a zoom meeting onto a single event in a recurring series.  Now it is not allowing for that.  Is this something that changed recently?  Or is there something we need to make active to allow her this option?