Transaction not yet indexed

Mtmn3hjUWjRHSGEaC2vfKf9Udb6XXPGZS4HJEdE1ZfnkpT8PJhyVW8kHNsTHGh28hZ1iWLrc7TBaFhW7o8k6iJG

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