I had a first interview with the HR representative (15minutes) which was very basic , to validate the salary expectations mostly. At the end of the call I was asked to schedule an interview with the hiring manager, which I did immediately. A couple of hours later I received a meeting cancellation notice (automated) without explanation. I reached out to the HR person as well as the hiring manager to clarify if this cancellation was a mistake or understand the situation. None of them ever replied, despite chasing a couple of time.