Transaction not yet indexed

MymKp21pgF3j45TCodGm2SnDT3WESQ5ZgRG77X29AGaTJko4gUyLSb9PmqM9eP9wyKp3QVb7APGwbqn9Ghj2ct9

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