Transaction not yet indexed

ymtQBMQfkAyo24JADTbcuEVNjrm6iXPVtBiDFRuTCGjmdRb5h7Eq2ySpcQoet1pqhyiFtTpcb6W3wS2x5oX4iRv

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