Core Sound Imaging interview questions

During the time of initial contact after applying until the day of the scheduled recruiter prescreen interview, the recruiter was very responsive to messages and emails. After the recruiter prescreen interview, I was completely ghosted. The recruiter did not follow up with me and did not respond to any further attempts to follow up on the next steps of the process.

Was invited for a phone interview and then invited for an in-person interview. The technical part was a little confusing and one of the interviewers asked weird questions and some of his technical questions didn't really apply to me since I didn't have any experience in the subject(which he should have known from my resume).