Transaction not yet indexed

DDN6f8TCwfWgeyugKa1fiqg1tjAttPR89rKCAtSC1yWUAke8twqg3RPJFZ4mGuSaTYJDUxJgHYAc5sXoNDo7pXC

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