Unable to update Notification Preferences of an Org for a Project owned by you | Versions 5.3 to 5.6

Issue/Scenario :

Users and admins are unable to change/modify the Notification Preferences for an Org within a Project owned by you. 

Root Cause & Resolution :

It was recently discovered and a fix for this has been applied in version 5.7. Meanwhile, the admins could employ below Mongo statement to update the Notification Preferences for an org : 

db.projects.updateOne({"_id" : ObjectId("6411a54d96c56b3a2ba5927d"), "collaborators.collaboratorId":ObjectId("64b135d7ec6281675840d37f")},{ $set:{"collaborators.$.notificationSettings" : "Never"}})

For the above statement, please replace the project and collaborator Object Ids, these can be located via collections.find() method and also the notification setting.