Nuance interview questions

I had very good interviews with the HR Recruiter based in UK. He was doing his outmost but it was the management that seems to be unstable. My last interview with one manager was only 15 minutes so I knew that they already have decided and wasted my time. I spent a lot of time in interviews and frankly, I wasted it. No issues with HR recruitment but with the managers that seems not to be able to agree between themselves.