First was a coding invitation then, a recruiter phone screen. After that, I was scheduled for a technical phone round. The interviewer joined late at first and due to network issues we were delayed by a few more minutes. After we started, the interviewer asked to design couple features of their application (DS, Algo) and then added couple more functionalities. I was able to get all questions. In the end, I was implementing the last feature and the interviewer rushed me saying that I only have a few minutes left (basically my interview time just got shorter because the person arrived late and something that was not my fault). I somehow managed to miss a part of the feature but the interviewer didn't ask me to try to implement it, so I didn't stress out. I was later rejected saying that last part which I couldn't implement was crucial and that is why they rejected me. BS. They are completely binary in decision making and the fact that they do not clarify things that matter them the most is frustrating.