Transaction not yet indexed

421ZmdShWSJPpM1hEbUL6cKypfNkQwVFNbV3D6YnL2q9DVHgmjVrBJBke88iEH19zvEpz6Kcs2QJQfVZfaFmyLuM

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.