Transaction not yet indexed

AMKaFELW38cbzRdkQXCfrkHyrGiuApsYSj9fZBRViPMEsULYh3tFNHvYorks2rfTiFKY2msJ8u3Ghgq3YGqsXNP

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