Transaction not yet indexed

MttMSM8HSXpsFybbGfSfMkRcDCKSY1EkMGKMaaVNs3cw8MKWqk5LUSPVHhESU6EcrpbWHihdAb8VB7tUBTguBHq

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