Meraki interview questions

Got a Tech Screening. The interviewer wasted 20 mins in finding the Qualification question code problem. The question was to use their API(s) and find network infrastructure elements. Pretty much GET, DELETE, PATCH verbs. There were also questions on creating class objects for these methods and API quality. Since, I started late I was not able to complete one section. They did not get back to me. I followed up again and after 3 week I got to a technical round. Again in the technical round I met one of the interviewer who was shadowing in the eligibility round. He gave me the same question. I told him that I have already solved these questions. In spite of being honest, they rejected me. I could have easily solved all the questions and made it to the second round. The main interviewer was really not helpful. I have 20+ years of experience in Networking and this was a lame interview. I find their interview panel to be incompetent and hypocrite, as rejecting someone who was honest in the eligibility round.