I'm having the same problem. If I just start DB by itself it will work fine and I can continue as normal. When I go through YAR it will start d3, then start DB, flash d3 as per normal, then freeze and DB will go unresponsive and have to be closed. It will then continue to try and open DB to the same effect. I don't think a log can be generated from this as DB isn't even starting. It's odd to me because I don't understand how DB can be run as normal, but when it's started through YAR it apparently breaks.