Transaction not yet indexed

MNc6bMS87ZZXFmx6UUThuoaRtxVfrRbQRiyCQnCFHVhJ4zNeuZJnESiZjaoehfXANsjBg3w6UBP9cCHBTwgswJJ

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