I have a weird issue. I just recently did the OS X Sierra 10.12.2 update on my late 2013 Mac Pro and on my 15" retina MBP. I thought all was well .... but I finally got around to doing a shut down and restart on the Mac Pro, and realized my Matias Tactile Pro 4 keyboard is no longer working. Acts completely dead... no light coming on if I press CAPS-LOCK, etc.
I tried unplugging it from the USB hub I use and moving it to other USB ports and restarting OS X again. No luck. Went and got a wired Apple keyboard and attached it and it started working immediately.
Tried the Matias keyboard in a USB port on my retina MBP next, and it seems to be completely dead on it too.
Maybe it's just dumb luck that my keyboard died. But I don't have any Macs in the house still running an older OS X version to test it with -- so not sure if the latest update broke something with it or not?
I tried unplugging it from the USB hub I use and moving it to other USB ports and restarting OS X again. No luck. Went and got a wired Apple keyboard and attached it and it started working immediately.
Tried the Matias keyboard in a USB port on my retina MBP next, and it seems to be completely dead on it too.
Maybe it's just dumb luck that my keyboard died. But I don't have any Macs in the house still running an older OS X version to test it with -- so not sure if the latest update broke something with it or not?