Transaction not yet indexed

mkMpfjSAG8yLdpvzvikKCzLfKdifTqrnRJTdXZCTsikbNt1dJnxsHsD1sZTwKYz54CcR3cYpRDUv5LLqshoygR2

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