Oddly enough, this bug showed up in AH1, but was then fixed.
When mapping throttles 1-4 to a single throttle controller, for some reason the axis on throttle 1 is reversed from throttles 2-4.
So throttle up and every engine but one goes down, throttle down and engine one goes to red line.
The easy workaround (of course) is to 'invert axis' on just the one throttle (or vice versa)
