Discover Software Engineer interview questions

I cleared the technical round with good merit and went to on site for final round. One of the interviewer in the panel was not even listening to my words and asked irrelevant question. Later he was corrected by other panel member. After a week recruiter called me and said I cleared the round but one of the manger from the discover wants to talk to me, I said yes, manger gave a call to me and he was speaking as if he's in hurry. He said the panel has forwarded your application to me and they you are interested in taking a developing position, but right now I don't have any developer positions available in my team, I can offer you a production support. I said I'm ok with the offer. Next day the recruiter sent an email saying that they were not interested in offering a position. I called the recruiter and asked the reason, he didn't gave any explanation. I totally don't understand, why the panel forwarded my application to the wrong manager who don't have any vacant positions. If that manager don't have any positions with him then why did he accepted the forwarded application from the panel. Why does the so called experienced person in the interview panel was not paying attention to what I'm saying? After this incident I strongly felt their interview process sucks in evaluating good candidates.

The recruiter was awesome, I had a great experience with the first 2 rounds of interviews and he was very easy to talk to, informative, and helpful. The coding challenge was also very straightforward. As for the phone screen with another person, it was laughably rude. In addition to them requiring you to install software to interview you instead of just calling on the phone, my interviewer was very soft spoken and not an English speaker. I had to ask many times for him to repeat himself before he abruptly stopped, insulted my education and previous place of work, and said he would give my notes to the hiring manager - less 15 minutes in to a 45 minute meeting. I haven't heard back yet, but offer or not, I will not be accepting.