Transaction not yet indexed

AC8ZugYu15tmzhDSLEPq63hFXjnhSVnwKwP6Mw9mVPzTyvEE6bYpxCJhBjVvkUnDP16dwMYx29de1RJyz2d2fws

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