Em sending calendar invites for old appointments

I installed eM today and linked it to my Apple iCloud calendar where I have been managing my appointments for years. Everything appears to work great except 2 things:

  1. I am getting popup notifications for every single meeting from years ago…one at a time, oldest to newest, as it works its way through the years.
  2. People invited to those old meetings are receiving emails with calendar invites/reminders.

I’d love to at least halt the emails/notifications in the near term while I figure out why it’s doing that, any suggestions?