Transaction not yet indexed

Nu6hEqaNYAasCSmAJAgzTQNSTzq1pda7h7LHTLxWATFHCCeu6cHXTbPKdRPxXfG8ZyvLMuMXsSx53vGmJuCnGx3

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