So this afternoon (Around 11/29/2014 3:19PM) I went to nuke one of my war partners, http://www.cybernations.net/nation_drill_display.asp?Nation_ID=496822 , and got this screen as expected: However, after clicking Launch Attack, I get an error that that nation has already been nuked today. He can't have been nuked, as I'm the only nation at war with him, I hadn't nuked him yet, and he's not in anarchy. This also consumed a nuke each time I tried, losing two of my nukes.