Yes, one tab was on the battle and the other was on the "Your Pokemon Team" because I was leveling something to evolve. I don't remember what that was. Also I might have had the Item Shop open but I can't remember for certain.
I was battling Aaron about to send my last pokemon out against his second Drapion. I clicked the continue button and then it informed me I had lost. My Chandelure never saw battle and now I have a loss on my record. I am confused about how this happened and wonder what if any explanation you could give.