Transaction not yet indexed

421sx73SzuZ2MAVAEQeZmw5pA4CMm37RXvJuLw5MgPqUpw4EP1CefkZXAGZtR7tyfvMH8yfbcSiG7MoE6YVuYgHP

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