UBS Data Scientist interview questions

Had 2 interviews with the team, then a case study, an interview with the global head, and another interview with HR. So 5 total rounds... The final call with HR was very positive, but they never mentioned an offer, although signs that there would be one. In the end the position was offered to an internal candidate, however I was never reached out to by HR... after 5 rounds and such positive feedback was really expecting the HR to at least be honest with me and tell me I did not get the position.

Had a quick call with a recruiter, followed by an interview with the managers and a few employees, followed by an added step where the head manager held questionnare session with a colleague.