Transaction not yet indexed

121n8YG9Kj8Gk5RSCzfRHoD7C51MyLQbVmwHUe2tJagPL16aUrS18sbJJV7o87Zo7WmxPKdePFzrt5QzVfNbCqyZ

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