Messages posted in MS Teams are not getting processed.DescriptionSystem Event Notifications from MS teams are not processed and it's blocking the processing of channel message notifications that are coming from MS Teams. Steps to Reproduce 1) Promote an SI as MSIMSI will be created with one team and multiple channels.2) Add a valid MS user to one of the channels3) Now try sending messages from the team's application.Expected result: Messages posted in MS teams application will trigger notifications and these notifications should be processed successfully and the messages should be loaded into our messages table.Actual Result: When we are adding/removing a user, a new system event notification gets shared from MS teams which is not processed. This causes the channel message notifications to always stay in pending state.WorkaroundUpdate Set: Load this update set This will ignore system event notifications and also unblock the channel message notifications Related Problem: PRB1547152