Received an email for an HR phone screening where they went over the position (a full-time remote front end engineering role). Went over some basics and then setup a technical screening for Tuesday of the following week. Monday morning, the day before my interview, they inform me that the position is changing from a remote front-end engineering position to an on-site senior full stack engineer position and that my interview was canceled. I don't mind the time invested in interview preparation, but 24 hours notice? Really? I burned a vacation day for this interview. The fact that you didn't manage to figure this out until the day before my interview suggests a company that has absolutely no idea what it's doing. It's one thing if you manage to figure this out a week before interviews start, but the day before?