Did you make changes in the past couple of weeks? It's possible this is the aftermath of a bug being fixed that meant the day-of email reminders weren't being sent (after users received the 14-day notice one when you first implemented the changes) - but all the emails should reflect actual changes you have historically made to your Actors. If any do not, firstly sorry for this! Secondly, please send them to me to help debug the bug fix 😁