Bloomberg Software Developer interview questions

Made it to the 2nd round, 1st round was a virtual interview where I solved a hashmap stack candry crush style question. Didn't manage to get a fully coded solution but I fully explained my thought process and made it to the 2nd round. In the 2nd round, I met them in person and got interviewed by 2 engineers who gave me a collatz problem and a LC easy. Overall, I was confused why I got denied as I thought I did good. Interviewing was overall pretty chill but it seems like they really stress acing LC easy's. I ran out of time so couldn't finish it in time.