Transaction not yet indexed

Me5zFWGFrfFkuCHEsU3fS1waqbDfTbRhLusV1UsA2pph6h6UC2ssSCTNQAYvVZhQ71S9EWK5bWqim9VFc2gb5Uy

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