Transaction not yet indexed

mkkyDHgpT3eQUqnAbvYZLjVdcdtZDCUzpMfMNjfFhJeDP6f2RoFxrBJ1NMeqUiXHff4XrPy4kZX7YFeEP1bPQFQ

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