Hiring manager scheduled initial screening interview saying HR person was away. After a positive conversation agreeing about mutual fit and interest said she will be scheduling followup asap. 3 weeks later after couple of chaser emails for update I finally received a 'genuine' apology email from her asking if I still want to proceed which I did. Never heard back again! Very unprofessional, lack of basic courtesy and respect, it was for a senior level role that seems to still be open.