After a random amount of time, The UI gets screwy and the button you would press to interact with a building as mayor disappears. You cant unload resources or force repair buildings. This doesn't occur in the Window that pops up, only when you L click a building and the small circle that would normally allow you to unload or force repair would show. The mayor can still assist with construction via the pop up window.
I attempted to follow your "how to report a bug" thread, but I don't have an output log in my application file location. I have saved and copied the save, but no output log.