Productboard Product Manager interview questions

The interviews had 4 rounds. From meeting with HR all the way to team fit. One of the rounds required preparation. We talked mostly about product management with focus on ideation, research and discovery.

The interview process was very long. The first interview was with HR, the rest 3 interviews with product managers. All of the interviewers were men. I was asked to prepare a presentation about the biggest challenge I faced as a PM. I put time and effort in creating the presentation. I received an email an hour prior to the scheduled interview which stated that the interview will be cancelled. The week after that, I got another email informing me that the needs of the team changed and they want to hire a more senior person. It is disrespectful to treat candidates like this.