Transaction not yet indexed

MDn4RQ6JDhBHETfLhKe6VHZt5xDqkqsSR8cAsLTwuBeZvGSn99MHmMSkooHgb8z4ZA1c4yFV2UbsMNNbP6L31Sx

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