Upvoting Threads

Am I the only one who notices that some threads when you upvote don't actually get upvoted?
Like to test this I'll upvote a thread with 0 upvotes and it stays at zero when I refreshed
The same goes for downvotes

it happens to me sometimes too, i just wait an hour and it fixes itself

I think it’s because the threads are heavily downvoted. So when u upvote, it stays at 0.