Confluent Customer Support Engineer interview questions

I had two interviews. First with the recruiter then with the hiring manager. I thought both went well. The hiring manager even said at the end of the interview that the recruiter would get back in contact with me to schedule a next interview. Then...radio silence. I sent one email to the recruiter after 7 days asking for some interview feedback. No response. I sent another email 10 more days after that. No response. It was very unprofessional by then to lead me on and not respond at all. A simple reply saying 'sorry, we decided to move in another direction' would have worked.