PayPal Staff Software Engineer interview questions

The recruiter reached out to me and told me they use Karat for the screening, and honestly, I have never liked Karat. But I went through the interview: the first 20 minutes were five system design questions where you just have to speak. The last 30 minutes were for a coding question. I solved it, ran all the test cases successfully, and passed optimally. However, the recruiter reached out to me and told me they will not be moving forward! I am really surprised. I believe this was probably the best tech screening I went through.