Ericsson Data Science interview questions

I interviewed for the GAIA Data Scientist II position. There are multiple rounds: 1) 3 Technical interviews 2) Online coding test: HackerEarth test 3) Managerial discussion: Hiring Manager and director took the interview. Overall the interviewers were fine. However, HR during these 2+ months never responded to any of my queries or concerns. I spent many hours on the entire process and in the end, I was even told that I have cleared all the rounds and they are going to offer a role in 1 day. I waited for another 2 weeks, then after constantly reaching out to HR, she finally released the REJECTION mail. GAIA – TA Team is the worst I have seen or heard about. They have wasted a lot of my time and effort and would advise anyone to avoid Ericsson GAIA interview process.