Transaction not yet indexed

AmXmKS2LH8etxAtZahBDKXGhBpTUeK6EjHwWNuULmdRuPFpULT1J1Bx2sftidNPyzGoY23K4HXVH4uDMPL4Sq97

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