As you probably know, VoteRoulette, the plugin we use which gives the randomised voting rewards, didn't work with 1.12. (That was one thing that didn't get tested on the test server - it's not installed there as the test server isn't world-accessible so couldn't work.)

I was waiting for the VoteRoulette dev to release a version that works with 1.12, but there's been no updates from him at all, so I forked it on GitHub and fixed it myself; we're now running my fixed version, and all is well.

So, vote away!