Addepar Manager, Software Engineering in Test interview questions

Gone through 6 Rounds for around 2+ months of span. Very lengthy to be honest and less productive. Recruiter Screening-> Hiring Manager-> Business Collaboration -> Behavioral -> Strategic Vision and Collaboration -> Tech Deep Dive After Hiring Manager round, rest 4 rounds are in parallel to make conclusive decision with all panel members. Had over all good experience Other than Tech deep dive, this one bit off the track due to Panel member's limited knowledge & being adamant to it that its only solution which he has worked upon. HR as usual no response & habit of ghosting post interviews are concluded.