For whatever reason, the “W” key does not quite function correctly. It starts out fine, but as a game progresses (5 minutes or so in), it won’t select (using keyboard) what it displays on screen and instead jumps to something else like a hotkey group I set up. For instance, I will build an extractor early on I have set on the “W” key (depressing keyboard key). Later on, when I need another, the screen still displays it as marked for “W”, but will instead choose one of my hotkey groups (like all my gateways) when depressed with the keyboard. It’s very strange and it does this regardless of my game mode. My workaround is selecting extractors or whatever is on the “W” key with the mouse instead of the keyboard. I don’t think me having the unit “stop” command hotkey’d on the “W” key would affect this, as it doesn’t create any conflicts when I need to build something.
Found the problem. I had the warp in under unit management hotkeyed to “W”. So after making a warp gate, the warp in hotkey would override other hotkeys (conflict). So if anyone has the same problem, check this.