Duo Security Software Engineer interview questions

Had a call with an HR rep, was 3 hours later than they originally scheduled. Talked about the role that I had applied for and got me in contact with the engineering manager for the next interview. Engineering manager interview seemed fine, not really technical, just getting a feel for where I'm at in my career and what they are looking for in an candidate. Neither interviewer at this point manages to tell me they are looking for senior level (5+ years) than what the job posting indicates (2 years) on their very website. Moved onto a technical interview with a few of the seniors, HR scheduled it much earlier than what I had posted being available leading to a pretty awkward phone call asking where I was. They were rather simple challenge questions that were easy to read and did not feel reguritated. If you spent a day studying you'd probably be prepared for them already, although they are not as easy as the questions from 2015 already listed here. The interviewers were always pleasant to talk to and the interview didn't seem like a chore for them like I've noticed from many other tech interviewers. Had an onsite after that, interviews did not really change for the most part and seemed more or less a repeat of the phone interviews. Don't have a single bad thing I could say about the interviewers, really. Only thing was when I was told I would not get an offer I was told conflicting feedback between the HR rep and the manager. One seemed to think it was based off what location I selected, another seemed to be based on experience level (which I'd imagine you'd read off a resume in the beginning?). Lesson I learned? Take posting descriptions with a grain of salt, specially Duo's.