[2020] Netcode issues today.

To address all of the threads about this at once, there were serious netcode issues tonight due to a mistake during the release process, leading us to internally test a different thing than what was eventually released. Sorry for the inconvenience. We have made changes internally so that this specific type of issue doesn't reoccur.

The issue has been addressed with a server update, so there is no need to update the client, any game started after 9:30am CEST 12/09/2020 will work correctly.