It’s a known issue - I have been working with @melroy@kbin.melroy.org for a while now to resolve. I think we now understand what is happening under the hood, but not yet why it is happening.

Happens to me a lot. I just refresh the page, try to vote again, and then it works

wow… then when I posted the above thread, it responded with “This page isn’t working” and looked like an error msg that was generated by the browser itself. So I reposted. Same thing. Then I discovered that it posted despite the error. So then I deleted the dupe.

Let’s hope after today you won’t have these errors anymore.