Transaction not yet indexed

21Y6ERKyeex2xZEEPVKhjCbsd6d72BaZqDLVEv4uyLm2poucDKPKsSqFepeSXBYWdD1dGYpxiZizEDkLJrehmUm6

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