Confluent Consulting Engineer interview questions

The recruiter reached out to me via LinkedIn for a Consulting engineer role. He said there will be 3 rounds of interviews. After clearing 3 rounds, the recruiter said you need to give another round. After clearing the 4th round, the recruiter said you need to give another ( 5th round ). After giving the 5th round, recruiter came back and told me that they are looking for an architect role and not a consulting engineer anymore. I mean really? After the candidate is investing so much time in preparing for these interviews and taking out 5 hours to give interviews, you are telling that the requirement has changed? Please try not to waste the time of any candidate. The 5th interviewer doesn't seems to be intersted at all while he was taking the interview. It was for a consulting engineer role for the Central region.