Hi, yes, only being on the screen for a moment is normal, however at the top right there's a button to load logs. You have to select ridding log as it defaults to charging logs. Once a file is open much more of the screen comes alive including save as CSV. There's still a blank area however and I imagine this respond when a bike is connected. I can attach screen shots.
Going back a moment , too update a battery board firmware did you need to connect any of the interlock to ground please. Pin 6 on a Brammo board. Thanks.