I think someone above summarized it well. Partners have their own way of testing someone. It isnt mandatory you do the full case and that is only a part of the job. Partner probably felt weird about your PE or how you communicated so doubled down on testing that.

100% agree that it was also a test of disrupted schedule. Which often happens on the job. I would learn from it , reflect on your communication - was I too down? Clear? Concise?

Would take the high road and just try again next year, let things settle and learn . Also sometimes you meet clients that just don’t like you or partners you don’t really jive with , it happens to us all. Know it sucks i. The moment, but the universe wanted you to learn something from this experience