@Xon - I am using this addon along with Alert Improvements and the latest version of Xenforo 2.1. One of my users is reporting that a moved thread notification won't disappear from the top of his alerts for days and stays as a sticky at the top of his alerts above some newer ones.
Could that be related to your addon? Or any idea what I can do to fix this for him?
That is from Alert Improvements where a user can make the alert-popup not mark stuff as read. There is a "mark all alerts read" button when clicking "alerts" from account card for logged in users which also has links to alert preferences