Bloomberg Internship interview questions

I had applied online around September. Heard back in mid October. Could make it through 3 rounds only, 1 HR, 1 Phone interview and finally 1 Video Conference interview with 2 Software Engineer from Bloomberg. The rounds were easy, but I have no idea as to why I got a rejection. Phone interview had 2 problems, one was on strings, and other was on OOPs with follow-up questions on Concurrency, Scheduling, Hashing etc. Video Conference Interview had just 1 question, on binary search on a function, in a 2D grid. I did it well in time, discussed multiple solutions for modifications of that problem (which I had by mistake assumed to be actual question in the beginning) and wrote a bug free code pretty quickly too. I can't think of any other reason than they approaching the end of there hiring for summer internships.

On campus technical Interview. There were two engineers that asked me both personal and technical questions. The technical ones had to be done on a laptop (they didn't test the code, just wanted to assist through ones problem-solving steps)