Transaction not yet indexed

NUuH21rvhny7nWi647B4rBTNbdWETQjGb6JsJfaPgpuQtQCbjUxvhZ3ynUqLHkrARaDKchSCGvjMU1ubg1fSwVK

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