Transaction not yet indexed

AmcknCmc5bKw7TMLfDjDMoLTcsHCAYntsthHKByPgfeA2fFdqRjqBVkC9p8vhdLNyKBjjppHXsgnLEg6LzYD3ze

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