Transaction not yet indexed

AmGTnjY2P5ghEa5emGHNaK5eCrPgZbWekF145GSB2MpuLFSd8PZS7LWyLGSuqMKu75js2ViSQR2aNZzzX6WzZ48

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