Hi @Anonymous ,
Actually, you cannot see them in there - go to the App list, select the "three dots" then Details (at the bottom), then Connections (at the top) and you will see the connections in there. If you select one, you can choose "Apps using this connection" to see which apps are using the connection.
To be honest, the easiest way to fix this is to delete all the data sources and then add them back in again, making sure to use the same connection each time.
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