Transaction not yet indexed

MT6kpXWASJ2a7xvZ1VxrCbDBtv6uP2owEYz9xDDMQWkwToUbqkJEmd96Jp3TmAdvFUhm1eWVMaAiM6ZoXjE1M8E

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