I found it very hard to get a title for this topic! This is for little discrepancies you’ve found in Lego’s advertising, water it be a reversed Kopaka mask in the 2015 advertising or the wrong piece used on a set.
I found this one in a Toa Mahri poster:
The Kordak is the wrong way around, it connects to Kongus hand by the axle, not the ball joint!