Meta Research Scientist Intern interview questions

I was interviewed for a UX research role at reality labs. The first round was a technical interview with a current researcher about user research. He asked me to select a non-Meta app and asked some research questions for improving the app. The second round was an interview with the team presenting my own research and some Q&A about the methods I used as well as behavioral questions. Both were fine especially the second one but I didn't get the offer.