Transaction not yet indexed

MC2yPCWgAnvBHADBRF6eNBQdeYCy5aiAbDBjNwu1VQ6SW8hjPmec4J2PcuQSq3jsZvEUASCsYto1vfqeyt55C23

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