Im taking into account everything, and the 3 videos show everything nicely. And you can clearly see whats happening if you look in slow motion. The only thing that could do some dmg is the 2nd video axe hit, although its not logical as i explained. 1st video is clear as day. 2nd is difficult to see, but you can in slow motion, and you can see that the axe clips through the shield.
Okay You really made me download those videos and look at them in slow mo xD.
The dark one with the axe - unfortunately not possible to see clearly what happend.
The one with spear form above - in slow mo it looks like you put down the shield just before being hit.
The one with the sword from side - this one i agree in slow mo it's clearly hitting the hand holding the shield. Probably shield hitbox size should be adjusted.