This is the same thing that happens to me. In my 60 or so battles, I've had 40 losses. About 30 of which were counted as losses because of this. I could have won about 20 of those. Meaning I have win loss ratio 20:40 at the moment but I should have about 40:20.

Check if your connection it's ok
Clean the cookie for avoid any delays
Check if the Adobe Flash Player is updated
Check if the opponent is always the same, he could be having connection problems
I had a similar problem putting the legs of 45, those tokens, see if you have recently changed some items and see if it could be the problem

(Want to be allies? Sometimes I like to pretend I am a princess riding a pony..) happens
I know what happening and how you solve it and why its happening but i will not say; this is a secret cheat glitch.. Just game must take feedback if its waiting us to give feedback this is may used for cheating..