Jan, 1tth 2021 - TWC now redirects all urls to the "www" domain, because of that, it's no longer possible to vote guest and logged simultaneously, so, all guest voting must be performed before logging in.
Jan, 8th 2021 - IMPORTANT: Automatic voting no longer works on TWC, because of that handshake buttons were disabled. See Las suggestion below in order to improve automation on TWC side.