Bloomberg Senior Developer interview questions

The interviewer was late but no worries. We started the interview and it went well. It was a 2D matrix problem, not terribly hard. I got it done. The interviewer acknowledged that I had covered all use cases and we discussed how to optimize it. The interviewer agreed with my suggestions. In the leftover time we talked about working at Bloomberg. Then next day they get back to me and tell me they decided to move on which was surprising caus the interview couldn't have gone better. I have taken enough interviews myself and done enough leetcode to know when I have screwed up. That interview was close to flawless. So they decided to pass for some other reason which their HR did not share even after I asked to recheck if there was a mixup.