Supr Daily Software Engineer2 interview questions

I interviewed through a consultant. 1st round was a hackerearth round, which had to be given on site. There were 2 easy questions and one of the question's test cases were corrupted. this was a 60 minutes round. 2nd round was a machine coding round. I was given a sheet with the problem statement, which was to implement a rate limiter given some service configurations. I was fairly prepared for the question as it had been asked by them before as well. I was given 2 hrs for this round and was said that this round wuld be followed by a 30 minutes discussion with an interviewer to go over the code. After 2 hrs and waiting for almost an hour, I was informed that no interviewer was present currently. So I was asked to mail the code and it would be reviewed later, I'll be informed. I did that and left for the day. After around and hour or two I was informed that I wasn't selected for the next rounds.