Capital One Project Manager interview questions

I had a phone screen with HR, then hiring managers, then was brought in for a in-person interview. The in-person interview is a full 8 hrs, consisting of different types of interviews: behavioral, case study, and design challenge. I was put in a room for day which was in a very high traffic area and the room was very warm. One of the people who was supposed to interview me was out that day, so instead of pulling someone else to replace them, they let me sit in the room by myself for over an hour. Additionally, they mentioned that I may have to come back a different day to do that interview. I felt this was a little unreasonable because the require you to be there for an entire day to interview already, which means taking additional time off from your current job. Most everyone I interviewed with was very nice and made me feel comfortable. The last two people, just made me feel uncomfortable and the entire interaction was awkward. I've had good and bad interviews, this wasn't bad but the last two employees probably need a little training on how to interact with interviewees. The interview itself was hard, especially if you've never done this type of interview before and an 8 hr interview is a long day, but it was a great learning experience.