Transaction not yet indexed

1mkcZArhbWRgz1jDw4Y4pH4hhjvkmrCAK7zK7dgRYs5y4f6YJCdrQPy6Y3NJETt3cgTMUxpYCQHd4iW4P8RdUN1

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