Outlook duplicated calendar events hundreds of times

[Remi Roques]

Hi all,

I cannot recall my exact actions, only that I was using Outlook on my Android phone, but the end state is that I have events in my Outlook calendar which are duplicated hundreds of times.

See screenshot: I had initially 4 events for today (8am until 11 pm start times). They are not recurring events. Then they all duplicated. It totally bombs the phone applications.

Every bar is the same event duplicated, hundreds of them

I managed to delete them using Outlook on Mac so they stop showing up on my desktop, but they still appear on Office 365 Web and the Android phone.

Any idea as to how I can bulk delete those events?

Thanks!