It seems to be working again.. The log shows several people getting credited for voting this morning, and I just voted successfully. I didn't change anything, so I'm not sure what was happening.
Let's go ahead and claim that the problem was on their end..
I'm pretty sure they both work as long as you don't vote on Hobowars first. I have been leaving the HW's votes till after Plantwars for a while and it seems to work