I just lost a battle because of this. My opponent summoned Barrel Doggie, and I countered with Dwarf King Clyde. My Clyde did his Warcry animation, charged the Dougie, but did not hit him. It was Sudden Death, so an immediate loss just before my units clubbed my opponent to what would have been a loss. This isn't the only bug I've seen with his Warcry either, just the most ridiculous.