Issue with Kamvas Pro 12 and MacBook Air 13

I'm trying to get the tablet to work on my MacBook Air 13 and while the screen is conecting fine, the pen is not registering!

I don't understand what the issue could be as it all works perfectly fine on my MacBook air 11, no issues whatsoever..

Checked the display and set it all exactly to the same setting as my MacBook air 11 and even tried defaulting everything as well as installing and uninstalling, turning off and on (both the laptop and the tablet) but nothing seems to be working!!