Resident interview questions

The process took a little over 3 weeks to get to the 3rd interview. First- Initial video interview with recruiter Second- Another video interview with hiring manager Third- Another video interview with hiring manager's boss

I was invited to do a phone interview a day after I applied on Indeed, I was then invited to do a second interview with a person from the department in which this positions was in. It was a very good interview, later that day I was invited to do a third interview which was supposed to be the last one. I had that interview yesterday morning with the director of Customer Success. The interviewed lasted all of six minutes, my other interviews were atleast 25-30. I was rejected today, shockingly. I had more than enough experience to hand complaints and feedback.