Transaction not yet indexed

MyLMCEM7LCLmEpBcoBuFusSAm1ieKy2rC5mRkKV2ZBwktNe3r78qJqgN1apxpbhnk3GSsathDoVQvYjHfNSgZFN

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