Google NPI Supply Chain Program Manager interview questions

I applied online and was contacted by a recruiter about 2 weeks later. There were 2 phone screens, first with the recruiter asking general questions about resume followed by a technical phone screen with a googler working on the same team. The onsite interview consisted of 4 interviews of 45 mins each and an informal lunch interview session. Overall the questions mainly focused on behavioral aspect and were open ended, the interviewer would throw in a situation like tell me about a time when... or how would you deal with... It was great experience to prepare and go through all the rounds. A week after the onsite interview, the recruiter scheduled a chat session and told me that the recommendation was not to move further without citing any specific reason.