Transaction not yet indexed

AMkm2CqTkiAP9RWoxH2k6QYibhuSieAQQAXkT6FUYPA1mTnkxERrhD9M52EcfJXRM3WVbf2TCa32fQCG2tnKoQS

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