NVIDIA Developer Technology Engineer – Autonomous Driving interview questions

Reached the final on-site interview. At the end of the day, after 6 interviews, the hiring manager confidently claimed i'm 'the one' for the role, after collecting feedback from all the interviewers, and it's only a question of formalizing their decision. HR replied and said they picked someone else. Haven't had the interview expenses reimbursed yet and apparently they've never been picked up by the reimbursement team.