Rivian interview questions

Very unorganized fashion of recruitment, initially got a invite from recruiter to have an interview with the hiring manager, accepted the invite, and 30 mins before the interview recruiter told the inverview is postponed, but did not reschedule the meeting, just to be on safer side i joined the call and surprisingly hiring manager was on call, poor communication from recruiter, either way the interview asked couple of quality related question and was impressed with my background and wanted the next round. I was waiting for the next 3 weeks without any response, tried reaching out to recruiter thrice since hiring manager affirmed that he wanted me on the next round, suddenly I get a rejection email. Very poor professionalism and communication, honestly happy that I didn’t get to next round.