Okay so, I don't have a lot of images cause it happened pretty fast but My lead was Magnezone and they led with Aero, he used Thunder Fang and I used Thunderbolt, he went first and then i K.O'd.. but the animation went through for the Pokemon fainting / the Pokemon fainting message, then it appeared back on the screen and repeated the animation and the message showed again, then proceeded to continue on with the battle (he went to tyranitar, don't know if that means anything) The image just shows they had no Pokemon left as the Aero faint counted as 2 Pokemon!

Sadly this happens to me once a day lol. Yesterday I was in a ranked match and all of my pokemon went to 0hp at the start. When he killed my lead it was telling me to switch pokemon but none were available and I had to logout of the fight. Theres a few pvp bugs going around.

Damn, thats annoying, atleast its not just me experiencing this, thanks for the response

Atleast it happened in your favor haha.

I used to get this when I played, healing before every battle seemed to make it stop happen. Annoying bug nonetheless.