SEA IT Project Manager interview questions

Virtual interview, interviewer was late 15 minutes. They talk to me in mandarin before the interview begun. Did not ask about any technical question even though their requirement listed that they wanted someone technical. Did not ask much of project management skill. Overall the interview is quite chill but I did not understand the reason for me being rejected. The HR did not provide an update even though it has been 2 weeks. Asked for an update and the HR sent out a generic email stating that they will not be proceeding.