Ah, sorry you're running into it too! I pushed a fix for that exact bug a little while ago — if you loaded the game before then, your browser might still be running the old cached version. Could you try a hard refresh (Ctrl/Cmd + Shift + R) and see if it clears up? If it's still broken after that, let me know your device and browser and I'll dig in — I want to make sure the fix actually went live. Really glad you're enjoying it otherwise, and thanks for flagging it.