It is noticed that when looking at users within in the Risk Fabric console that the names fields are missing information and that in general the user cannot be searched and looked up effectively.
This is often the cause of a missing DC connection.
Check if all users are in common, such as all in the same region. Then find which DC should be used to pull all their information. Overwrite the Server table in the AD connector linked server object in SQL SERVER.
For more info see: https://support.symantec.com/en_US/article.TECH252973.html