I have a user that cannot delete an occurrence in a reoccurring Outlook meeting. They have created a reoccurring meeting till the end of the year with BlueJeans Outlook app. Every now and then the user needs to cancel a single occurrence of the series. When she tries to cancel the meeting she gets the error, 'You are not authorised to perform this operation'. I've made sure that the app has access to Outlook and tried reinstalling the Desktop App and Outlook plugin but issue remains, please help, Thanks!