I recently noticed that when I have only 1 building in construction it shows the building's name and time left until it will be completed. However, should I occupy more than 1 building slot, it only shows the time of the first building in queue (and only the first time I hover my mouse over it). When I hover my mouse over 2nd or 3rd building, it stops showing the time for all buildings and only shows the building name (and sometimes the resources it uses).
I know it is not THAT important but it would still sometimes be a useful piece of information.