This is definitely an issue. We are getting multiple users stating that they are not receiving alerts and/or notifications and there is no easy way to see what they have actually got configured in their preferences.
Feature Summary Send Conversation Login as different user Usergroup permission This addon allow Connect to another user. Options : Send conversation Conversation title Conversation content Conversation options Permission : Login as...
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Then you will be able to log in as the user and see what they have set.