CustomBooks interview questions

Would love to share more information but I was sent a request to set up time to discuss the role, provided my availability, and set up a date 2 weeks out (the earliest they had) to have an interview. The day before the interview, I get an email saying they sent me all of this in error and weren't going forward with the interview at all and that it was human error. Honestly feel like I dodged a bullet with how unprofessional this was.