Using Classic Outlook on Windows for personal email, calendar, and contact management
This has happened to me as well. I cancelled the meeting series as an organiser and it was removed from my calendar, however no one else got the cancellation and still shows as a recurring meeting in calendars.
A colleague forwarded the meeting to me and all the buttons were greyed out so I couldn't edit it and it wouldn't show in my calendar.
We have set up a new series, however with muliple parties involved in the non-cancelled meeting this has made communication about deleting the other series challenging.