Transaction not yet indexed

mpnd9SKX45ga9Lf6ce6tVZE7Spya7PDmSiUHLZDSc2AZZ1V9BspfoxY1NQS63RFAbqw82eNQVcHVCVM1jcCFSZ1

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