Transaction not yet indexed

yMMTrSM4tBknReQ4QxXJXie45NVzmiQHLggvqFR1621MePp5CGZ7GQXTQbKx9NPcCKsUVeenP2bHctktNp7eD5n

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