Transaction not yet indexed

MEF9pkUoa36zgxZDbstdETTaiF1bY3qXpCUFPSDnCKkuXkJEZEyNPci3ei6bUaekG7Aj5iLPES3JJRem6fooUKU

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