Transaction not yet indexed

1MKCSfErYRQ93kfmQm3X4sP7hGe8wqWdCW3tqW3QcFW8fKEYJ5faan2fNQ87UKw7rw9JM5rSV9QQK3sx4aJfhC8

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