Karma Mantra-Inspire Bug

I just had a game where I visually had a shield (the grey bar in my healthbar) but, guess what, I didn't have a shield. I reproduced it in a custom game using Kayle Bot (I had Windspeakers Blessing): I skilled E first and used it on myself when Kayle was near. After the shield vanished it left a small portion back in Kayles healthbar http://i1166.photobucket.com/albums/q619/Wgni/Screen13_zpsfjw9ok91.png Looks like she has a minishield? Well, she doesn't I kept spamming it: http://i1166.photobucket.com/albums/q619/Wgni/Screen14_zpsvdyvmvtn.png http://i1166.photobucket.com/albums/q619/Wgni/Screen16_zpsmpnzuxnl.png http://i1166.photobucket.com/albums/q619/Wgni/Screen19_zpsj5o1hcfk.png

I think this is a bug due to Windspeakers Blessing and the AoE-Portion of the shield. In the normal game I played I even had , which could have speed up the process but I am not sure.