Wargaming interview questions

Quite weird: After successfully passing the tech interview, I was rejected following the interview with a lead. It felt like a waste of time. I passed all other interviews, but after the rejection, the HR contact who reached out to me stopped responding. I can't get any feedback from her.

Got through the interview with HR and then with the Live Ops team leader, received invitation for the third interview with the team leader and a producer, but it got cancelled on the scheduled day. I didn't get a clear explanation of why it was cancelled, the HR just said that they didn't hear anything from the hiring manager.