Visa Inc. Product Analyst interview questions

I had a 45 min call with the recruiter, an hour long conversation with the hiring manager and then she moved me along to meet 5 of her team members. It was across 3 hours and they asked pretty specific questions and it sounded like they were looking for specific answers. After that, I got an email from HR for one last round with another manager. That never came and I got an automatic rejection email. After 7 rounds of interviews + an expected 8th round, I got a robot to tell me they went with other candidates. I even reached back out to the HR guy for feedback and didn’t get a response. I felt like just a ‘number’ after all my efforts and preparation.