Lytx Analyst interview questions

Firstly the 5+ years managerial experience role is tagged as Analyst in the job posting. The HR herself reached out to me confirmed the expectations and get an approval from the Hiring Manager before starting the rounds. Now I cleared all the 4 rounds back to back which happened in a jiffy over the period of 1.5 months maximum. Now its been over a month and I have been told that the Hiring Manager wants to interview more candidates, and will keep you on hold for a few days. Now no one is replying or getting back at least with an email that we are proceeding with other candidates. Such an awful and unprofessional experience.