Hitachi Vantara Full Stack Developer interview questions

There were 2 rounds L1 and L2 arranged by a consultancy mainly named as Eleventh dimensions for hitachi vantara . I completed the L1 round and invited for L2 and final round but got a call 15 mins before the L2 round that the panel is not available and will schedule and interview when a slot will be available. And since then the HR recruiter is not receiving my call and replying to my messages Hitachi is a big company and should look out for the consultancy who is scheduling the process in this manner. This is the second same kind of review in this 2 months itself.

Really a bad interviewer both the times I have tried for Hitachi. I have given the first round. and interviewer was even not interested to talk. Just he has asked 10 questions and most of them were just what is type of questions. and the role I have applied for is for senior full stack developer .Net Core + Azure + React. But the interviewers were asking anything. He has asked me, How to create button in WPF? (me: thinking in mind: I am not sure why he has asked this question, luckily I have not selected, otherwise, even I don't know, in what kind of project I would have landed. ) Then after few months, I thought to re apply and then also I got the similar kind of interviewer, who has asked me, what are impure pipes in React? (me: are you serious, impure pipes are in angular not in react). Not sure, but either people working in Hitachi Vantara are working on very old stack, or they are really not interested to take new people. The interview happened over an app flocareer.