Bloomberg Software Developer interview questions

The interviewer introduced himself and let me introduce myself first, and then we talked about some weather and working location topics. Then he let me introduced a project on my resume, and asked what was difficult about the project. And which filed was I most interested in? And why Bloomberg?

It was a phone interview initially. Which was help over a zoom call and a hackerrank session. The inteviewer seemed uninterested in the inetrview and was not helping in any way.