After upgrading Quick Connect, the following error is observed when attempting to view or edit certain connections:
Cannot connect using the specified connection settings. Value cannot be null. Parameter name: type
When upgrading Quick Connect, it is also important to upgrade all connectors in use to their latest versions.
Additional Quick Connect Connectors are installed as separate components from the primary Quick Connect Sync Engine application. Review the installed applications via the Programs and Features console, and ensure each connector installed is up to date.