I interviewed for a SWE intern role. I first had a call with the Engineering Manager, where we went over my CV and my motivation for the internship. Then, during the technical interview, I was given a problem and the interviewer left the call, returning ~45 minutes later to discuss my solution. While I appreciated the opportunity to solve the problem independently, the format felt unusual and lacked real-time interaction or clarification. I believe my solution was correct with only a minor fix, which I also mentioned during the discussion, but I was rejected without receiving any feedback. I also followed up with HR and did not receive a response. Overall, the technical challenge was reasonable, but the interview structure and lack of feedback felt unprofessional and could be improved to better support candidates.