I bought a KLIM keyboard, and or some reason the boost doesn't work anymore. Has anyone else encountered this?

I chekced the keyboard settings, and Left Shift is still listed as the boost key, but no boost charge when I hit it.

I'm using a Wireless Mac keyboard, all buttons work except cant get the boost to work, i wait for max speed and the green circle to light up, while holding accel, and clicking L Shft still nothing. Any ideas what im doing wrong?

thanks

You have to bind/hold pitch down to charge the boost function then click the boost button, for example bind pitch down to E and boost to space bar