Transaction not yet indexed

21MKDM6k3fGDdfe1Fyz8QQuS5jVxKuJSeUD19c6MtnQ6yg2nC5i1KLZs6mXaCf3RpfrYNpjXWMMBRk7osLxXd7xR

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