Transaction not yet indexed

ymkPDTikMppEKxYL2nnw8KYpU8FFtRXNpihEgwTt7xvppwUffpAEAJgvVk7M8KjCBUJRTqsyu6ovVPEDEEQhwsE

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