Zebra Technologies Senior Computer Vision Algorithm Engineer interview questions

First conversation with Recruiter: 1. One UK panel round. 2. One Indian panel round. 3. HR discussion After clearing the First round, again change in process: 1. UK panel round. (cleared) 2. Assignment (Was a pretty challenging task) 3. Assignment discussion with Indian Panel 4. HR discussion. After clearing the Assignment part, again the processes changed: 1. UK panel round. (cleared) 2. Assignment (cleared) 3. UK Panel round (3 hrs, 3 members) 4. HR discussion. After the second UK Panel round, no update from the recruiter if you are selected or not. After investing more than a week's time in the process to complete the assignment and take the interview, they don't even bother to share any feedback. (Not even the panel responded to my follow up mail).