NiCE Software Engineer Java Developer interview questions

The interview consisted of 3 rounds: 1. General Screening with the hiring manager 2. Coding Challenge from home 3. Final Interview to discuss Coding Challenge first round was introductory. second round was easy which was a take home assignment. In 3rd round, although completing all of the requirements, interviewers were not somewhat satisfied. I was really surprised that only 1 person reviewed my code and others were not having any idea about it. And the interview also consisted other technical questions which were not part of scheduled interview.