Went through a dozen super generic interviews for a generic engineer role. Got a good feedback but ended up finding out that the role was filled before my case

Went through a dozen super generic interviews for a generic engineer role. Got a good feedback but ended up finding out that the role was filled before my case was presented to the hiring committee and that even though the interviews were generic, they try to use the results to fill one chosen position only. I needed to restart the entire process and do more generic interviews to try for another generic role in one particular opening.