I can seldom get the vote button to work, have tried every know browser. At first I thought that maybe there was some unknown maximum vote limit per person like the old system, so I un-voted all my votes but still cant get it to work.
I use chrome, and never a problem, maybe you should call support, and they can find out what is wrong.
I just used Chrome and Firefox to add a vote here. This is beginning to sound like a personal problem 🤣