backlightTimeout and button behaviour

Hi,

Just a quick question about backlightTimeout...

Bangle.setOptions({
  lockTimeout: 99999999999, //1157 days
  backlightTimeout: 10000 }); //10 seconds

function buttonPressed() { 
 //   console.log("trigger");  
}

The behaviour isn't quite what I expected because when the backlight turns off it takes two button presses to get buttonPressed() to trigger. I'm assuming the Bangle is listening for a button press to turn the screen back on then and then normal behaviour resumes.

This is how I'm handling the button press:
setWatch(buttonPressed, (process.env.HWVERSION==2) ? BTN1 : BTN2, { repeat: true, edge: 'rising', debounce: 50 });

I really need it to trigger buttonPressed on the first button press... is there an option that I'm missing, or perhaps an alternative way to handle the button press?

Thanks.