Transaction not yet indexed

MffHHkNodbpkWL6QQdb21V5ZBWKVSY2HdJMdFaTLfvpYJTkDEDbw145om4qtnhXjmMFqrjTetx4eEyHooDcLjuv

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