WizAR Learning Unity Developer interview questions

Got the request on linkeding interviewer didn't show up on the mentioned date nor the person who connnected on linkedin responed, then after few days got a response with some excuses and requested me to have a interview right now, i agreed interview started directly with asking questions without any introduction to the company or introduction of the interviewer. then while during the interviews interviewer was making weird faces which demoralized me even though i knew those answers.