Notice how the mines show 5 production and the farms show 5 food. They should only be 3. It doesn't affect gameplay really but it is distracting, especially when I am trying to manually count how much I have.
I'm getting some strange graphical glitches as well. Sometimes tiles have little red squares on them. Also I just had some glitched up scrolling issues when you reach mid-game when more things are happening. I'll click to another area of the map and there are graphical artifacts stuck on the screen, depicting trade posts/luxuries/roads or other improvements. They go away after I click to another area on the map but it is still annoying.