Transaction not yet indexed

21MtfKhuHBpmdsfzmWRKPyUFi5bh8eh313Rd9zK7DAmpiUtX4FEr8yQ6TtpNncFtcXoDMuzcLZBiP1NKa6WaJ3Et

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