@Dennis Noticed I'd broken a couple of commands earlier today (design fault of using the same property for two effects and then enhancing those effects: the increased values were two very different things that were now being controlled by the same value). Should be a smooth recompile, all of like 4 lines changed.
Does now! Awesome. Was trying to do a challenge earlier and was like "what do you mean that doesn't work?" and slowly figured out I broke ! (and y and ?).