Users experience the message counter indicator displaying a number of messages, but when they open the side bar there are no messagesIssue Users experience the message counter indicator displaying a number of messages, but when they open the sidebar there are no messages.ReleaseIstanbulCauseLive_group_member records for the user experiencing the issue may be the cause.ResolutionNavigate to the live_group_member tableSearch for live_group_member records for the user in questionExport these records to an XML fileDelete these records from the instanceTest as the user againIf the issue is gone, then reimport these records and test deleting these records in batches until you can narrow down which records are causing the issueRelated LinksIf this does not resolve the issue then you may be experiencing something different such as the max_waiters issue documented in KB0655956 - Queued AMB messages can push session waiters beyond "Max Waiters" threshold resulting in ignored requests (login required).