Possible Clues:

• No progress possible here in home security feature
• Stalemate - it requires a key to open
• Tie
• No progress can be made in this situation
• Impasse, stalemate
• Inability to make progress, having gone to Yale?
• Stalemate as Moor accepts crooked deal
• Stop awkward load crashing into platform
• Tie loose load occupying ship's floor
• New deal required in cargo reception area, there being impasse