Meta Product Manager interview questions

I passed a phone screen with a recruiter and was then invited in for an in person interview. They had me come all the way to campus in the middle of the work day only for one interview. My interviewer didn't ask very challenging questions, so it was easy to do well. But then I was told by the recruiter that they had no interest in me. I'm not sure why they wasted my time having me come in. It also seems unfair to use one very junior PM's limited evaluation of me to make their entire judgement. I feel like that interview should have been on the phone, or they should have had someone more than a year and a half out of school interview me when I was on campus, too.

Very professional and timely ... the HR recruiter and the PM who interviewed me were both very candid, which was much appreciated. Given my seniority, there were no open positions in this role, for which they hire far fewer people than for engineering roles.