Amazon SDE-intern interview questions

started with OA where 2 coding question on hacker rank and work style assessment. After passing received interview availability form took 3 week to get scheduled and was notified 2 days before interview. in interview i was asked 2 behavioral question 1) a situation while you were working on a project and faced difficulties and how did you over come - i answered well in STAR format few follow up questions 2) a situation where you didn't had enough data to make decision and went above and beyond to solve it. then 1 coding question leetcode medium from the concept of LRU cache a similar question was framed where i coded successfully. but after 2 days received rejection not sure why even the interviewer gave a positive feedback at the end of interview.