Transaction not yet indexed

mb6aDugAke8MYeZe7FDac7bgXvv9U3VihkA5fbkdxngw85dhgeY5onAZbLCk4FNWPtgXP4twewXfNHEVLQ2YL6z

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