Currently you don't get an infocard from whatever you've selected at the moment.
Thus if you hover over something without it selected, infocard on the right, but if you select it then, infocard vanishes.
This really drives me nuts. Making information stick to one place and not having it switch places all the time is imho very vital for a good UI. It's also counterintuitive to only have the info of a selected unit on the bottom and not on the very useful infocards when hovering over my unit.
For my sanity, please change that.