Quorum Software Engineer interview questions

Applied online and received an email to schedule a first round phone interview. Four hours before the scheduled time for my interview, I got an email saying they decided to go forward with another candidate. Thinking this may be a mistake given that my interview was already scheduled, I responded to the email and they confirmed that they did in fact decide to go with another candidate and that my interview was canceled. It was disappointing to have my interview canceled just hours before it was supposed to occur.