Nothing selected and no action occurs? Ouch. That only happens to me in the middle of a super laggy game - 5 fps or lower, typically with Stetmann, Stukov, Zagara, or Karax’s mass Carriers’ interceptors. (Or any typical zerg CO that can mass tiny units.) For everything above 10 fps, at least the click works.
Since Stetmann and Zagara are ideal as allies for this week’s mutation, I don’t think I’ll be able to play this one. Tried it on Hard with a Stukov ally, couldn’t click boom bots and enter codes in time. 1-5 fps with this mutation makes it Brutal+20.