AMD RTG Engineering interview questions

Spoke to Rys Sommefeldt on the phone to discuss a position and it sounded relevant and worth taking further. Emailed him back and tried to get in contact to take it further but he absolutely ghosted me. No rejection, no removal of the position, nothing! I find out a few months later that he poached one of my colleagues instead, completely unprofessional behaviour. This kind of action really puts you off from even applying to the company in the future.