Q: magic trackpad 2 gestures not working

I'm having the same issue. It turns out that the Magic Trackpad 2 only works on computers with OS X El Capitan and up (check "system requirements" here).

To get it to work, you're going to have to update your OS version to El Capitan (v10.11)

I'm running El Capitan and have the same problem!

-=Tim=-

2015 MacBook Retina

Also running into this issue with El Capitan, ironically on an iMac which came with the Magic Trackpad 2 and new keyboard. In my case both work fine if they are plugged in via lightning cable, but if they are just wireless the trackpad 2 will not recognize gestures and the keyboard special function keys are not recognized. However while booted to Windows 10 on the same machine both work fine.

Reinstalling El Capitan does not resolve the issue and the same symptoms are present in another user account. Weird stuff.

Turns out I had an incompatible version of USB Overdrive installed. I found that everything works perfectly after uninstalling. Conveniently, there was an uninstaller already on my machine I just had to search for. Apparently newer version address this, but I no longer needed USB Overdrive anyhow.

Try going to your Accessibility preference panel, scroll down (using a mouse) and select "Mouse & Trackpad" in the left hand pane, click the button that sez "Trackpad Options" to display…trackpad options.  The first of the two options there needs to be checked so that scrolling works.  This may be a bug introduced awhile back—I noticed this when a new install on my MBP 2011 laptop that had had this problem suddenly was working again.  Fortunately, I had made a backup clone of the old system so I booted up under the old system, found that the boxes here were unchecked and checked them—hurrah, went back to using the old system from which I am typing to you know and scrolling away in delight!

Thanks a lot!

I must have installed this program before and not fully uninstalled.

I reinstalled the latest version of USB Overdrive, and the problem is gone!

5/19/2016  Thanks of posting. I had the same issue - I believe a hand me down from an old Logitech mouse that Logitech stopped making drivers for and I still wanted to use. Have since bought a new (Logitech) mouse and even tho I uninstalled USB Overdrive it works fine.

I am running El Cap on a 2013-era MacBook Air with Bluetooth 4 support. I don't have USB Overdrive installed. The options are set correctly in the Trackpad preferences and Accessibility preferences -- and none of the gestures work with the Magic TrackPad 2.

Any advice?