Transaction not yet indexed

661cCa8C2MS9uhYsAzp5MEWWEUHcaXUcFkkVEMRcfskTJ4tMNem7TAPEkHTQNVLCxy7xSKWiP7RFuXMA2WvF1Ktm

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