not sure what a refresh bug is
but it happen again just after I started the game today. I clicked on a house, noticed that did not have enough supplies and moved to a lower building...the demand for coin and supplies of the first building were on the second lower building. I checked this by going to lower buildings to see what the right coinage was to be. The button to proceed was highlighted, even though the amounts were incorrect. Looked at a couple of other houses and when I went back to the error to see if could screen print it again, and found that it was fine.
is that what a refresh bug does