Transaction not yet indexed

AMpBQFhH9Cu4ZC3PqaGGW5Lq31CRZcRbLfoQYaDW8cM3HDWPm7Aag6oBJmRaiAcze7yfPgJPJsoUcUh7sHWJZoW

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