Grassdoor interview questions

I wasted my two weeks for 4 rounds here. Online Test - Selected Technical Round- Selected Coding Assignment - Selected Code discussion - Not shortlisted I have completed the coding assignment test in night honestly. After code verification I have received call that Selected in assignment now only discussion about code. In the discussion have spent 45 mins and after that I have received feedback only that Not Shortlisted. Its really unprofessional behaviour.

Very smoothly, there was 3 round In 1st round was technical , where they asked about your educational background, skills and some technical questions. In 2nd round you have to share your screen and solve problems.