Guess noone has discovered this yet since french never do this - but today our french player aged up with chamber of commerce instead of school of cavalery.
Chamber of commerce reads: Traders turn in 30% more ressources into Markets and Docks.
Now as you can see in the video - His traders had a bit further to go than mine. Mine brought 305. His 326.
305+30% ~395. Not 326.
Another Bug: The Arbaletrier gains fixed 5 Ranged armor from the shields up ability rather than +5 Ranged armor. Either change the description or the ability.
If the Arbaletrier has ranged armor due to Iron Undermesh, Wedge Rivets and Angled Surfaces they do not end up with 6, 7 and 8 ranged armor respectively when using pavise, but 5. It is setting the ranged armor to 5, rather than adding 5 to it.
Pavise goes from being a +5 ranged armor bonus to a +2 ranged armor bonus in late game.