Epic Software Engineer(Internship) interview questions

First a quick phone interview (around 30 minutes) where they ask you to describe a past project. Nothing technical. Within an hour of the phone interview I got the link for the coding challenge. The coding challenge is 3-4 hours and proctored by webcam. I thought I did okay but I got the rejection letter within a couple weeks.

Met recruiters at school career fair and they were really nice. I gave them my information and got a phone interview. After the phone interview I got a 3 hour coding interview where they monitor me write/debug code. But after that they decided not to move forward with me.