Transaction not yet indexed

Am4KWgSHcTeuxmrqQCEfA7PV5LuzxoGWhd8k9BpD2a3Hran1eCMJmcHdruhHCFPqePpbpfwHh2SAbtiUbVS2WfY

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