Transaction not yet indexed

21GMb57YAiFtaMiZbgCx4CFzJN95Y4oUjZmVhTD19tr3AjtYtph7YcSwSgPfPU5vAZ3UEdfnzmv8fUDGRKQ2umHd

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