In Turn 4 of The Binding Coil of Bahamut, there are some untranslated tooltips on the buffs of certain monsters.

I can say for certain that Clockwork Knights and Clockwork Soldiers have stoneskin-looking buffs that have their effects written in Japanese when you hover over them for the tooltip. I'm fairly sure they are special effects [not stoneskin] and it would be very beneficial for your average player to learn through the tooltip.

I am not sure if other monsters in Turn 4, or other turns, have localization errors. Coil seems to have a lot of forgotten translation pieces.