MCE remote won't turn off screensaver with button press

[[U]ber|Noob]

I have an mce remote but unlike moving the mouse when you press a button it won't turn off the screensaver.

Does anyone know if there is a way to get the remote to turn off the screensaver.

I've got it going through eventghost and autohotkey, so I'm not sure if that is making any difference to this issue.

It's Windows 10.