T. Rowe Price Investment Operations Intern interview questions

I first came in contact at a career fair at the university in currently attending. I applied through my university's career development program (sending a resume, cover letter, and unofficial transcript), and got a call back for an interview. A interviewer came on campus, and I interviewed for about 45 minutes. I honestly thought I did poorly in it though (just a mulligan of an interview). They said I would hear back in about 2 weeks for a second interview if I was selected but I didn't hear back, I figured I didn't get selected for the second round. Two months later, I received an email from their HR department asking me to fill out a more thorough interview to "complete your interview process." I thought that was weird because I hadn't heard from them in two months, but I did so. Two days later, I received a phone call with an offer.