When clicking the "Add" button to select excluded folders during data scans/migrations, the "NDS" tree turns to red italics and will not expand. Verified that we are logged into eDirectory with a Root admin account. Behavior is similar in nature to that seen when attempting to select objects but not logged into eDirectory.
Instead of using the add button use the import feature as this works without issue.
Waiting for a fix in a future release of NDS Migrator.