issue with +1 rep

seen with you try to upvote, it does not respond straight away and if you click it again it starts to down vote and if you try to correct it by upvoting it will keep on down voting.

and if you refresh page the vote goes to zero.

Is it on your own comment? If you try and upvote your own comment on manga it downvotes it instead lol I just tried upvoting someone's comment on manga and it just fluctuated up and down between 7 and 8 then back to 7. I did discover an issue with forum reputation though. I think you can just click upvote fast and it will continue to add rep but once you refresh it goes back to the original number.

this was upvoting a forum post.
i found that when you press up, it does not change to show +1 until a few seconds later, and if you keep on pressing up it starts to count down but when you fresh it goes to zero.