Transaction not yet indexed

518NeMXSFKPAqmaLgG8Rsu21FP3QXtG3mqT3YR4Mu1jgLVHFwvFqFj9sFe1XHMPaPcBiJosedDDqC9RJymRjQ8Ho

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