Transaction not yet indexed

YNnEMcRR6dVjR18i2yQuTQJdaTMpCiF85HQiMX54Gi9KjPhP7ds5B9CX8k9kJBv7Q8JrUMsrwVsw3j8ssjY2iBm

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