Ubisoft Software Developer interview questions

Scheduled a call, got a short call, mostly behaviourals and some technicals, language, experience, projects, did you use this prog language, what projects you worked on, mostly things like that.

The recruiter scheduled the meeting, but did not join at any point during the meeting's duration. I sent them a reminder e-mail 10 minutes past the start date, with no reply. I think it's very unprofessional to ghost a candidate in an interview.