I recently finished the civil war and had noticed something strange as I was engaging in battles wearing my Stormcloak Officer armor. Arrows would bounce off me during combat with imperials and those that would not bounce would end up in my inventory. After finishing the questline I switched back to my normal Dark Brotherhood armor and noticed the same effect taking place. Is this a glitch or some kinda invisible effect I now have?

This never happened before I started the civil war but now it happens with every archer I face.