Transaction not yet indexed

1mkkenaEfAwQ2wBQrZhghdN5qwEnHCg7NMYmW1jd3qichRLwCyCTPhZbCABMJjqRLMRKcVFvtEwuiWKXdnPm8S6

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