Troubleshooting & messages · Undo, move back and Recycle Vault
What does "Discard unfinished moves" do in Verify Setup?
Short answer: It deletes records of app moves that didn't finish and the partial copies they left on your drive. Apps in Applications are untouched; finished moves are skipped.
It removes Storage Studio's records of app moves that didn't finish, plus any partial copies those moves left on your drive. Your apps in Applications are untouched.
Moves that already finished — where the app in Applications was replaced with a shortcut — are skipped; use Resume for those instead, so nothing you rely on is disturbed.