You may have noticed this week’s updates have caused some unusual behaviour changes in the game, and a few bugs. These are fixed now, but this post is to explain what's been going on. I expect some of you are wondering "The game was working fine before, why do you keep fiddling with it? How is it that things that were working fine for years can suddenly temporarily break?" To answer this question I need to explain a bit about what we have been doing to the game-engine and why.