Transaction not yet indexed

AmAU7MKbVGo8U3crPdSNEXvDFTuSPSgRsFNwdWfvvfFKrb2mkvfxz6Vd1yzTLiAkSj9mjnq9eYD5fhNsv3RXT44

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