Severe input lag when typing in chat, with latency increasing as performance decreases. Game controls are unaffected, but "bleed" into the chat if it's opened right after moving, resulting in a "ddddddwwww           " style burst in chat. The key used to open chat is also often typed into chat.

The input lag becomes more apparent as game FPS drops / destabilizes.

The issue was never encoutered on any previous versions