We've investigated the problem and it is because your secondary monitor is positioned to the left of your primary monitor in you Display Settings in Control Panel. If you position it to the right, then the zoom should work.
We have developed a fix to allow you to place your secondary monitor to the left of your primary monitor and this will be published in the next few days, together with some other pending updates.
So, for now, re-position your monitors in Control Panel and everything should be fine.