When a user with square brackets [ ] is mentioned in the worknotes, the notification is not firedDescriptionOOB when first name or last name contain [ ] the user will not receive an email informing him that he was mentionedSteps to Reproduce In an affected instance: Rename the user "Joe Employee" to "Joe Employe [e]"@Mention the user in the work notesThe live_notification record is not createdWorkaroundAvoid square brackets in user names, as the @mention algorithm already uses square brackets internally. You can replace square brackets by parenthesis, for example "Joe Employe (e)" instead of "Joe Employe [e]"Related Problem: PRB1370884