Perhaps similar to Command+C (copy) with the left command key does not work, but (left) ⌘+c DOES work for me.
They keyboard is an Apple US (with the 10-key), wired. I am using a razer mamba mouse (i only say this because it shows up in the
Select Keyboard dropdown that i can set the modifier keys for in the
Modifier Keys... menu)
I've already tried resetting the default keyboard shortcuts.
Update: I also cannot type a capital
W using the left shift
Update: I have tried this with 2 different keyboards, but both are the apple US QERTY [sic] with 10-key. I have tried this on my laptop (rMBP) and on an iMac (both on Yosemite)
Update (with thanks to @bjbk for continued comments/questions): To clarify, I am saying that both systems (2 separate Macs, an rMBP and an iMac [incidentally, both with the drivers for the razer mamba mouse]) exhibit the same behavior described above. The builtin keyboard on the rMBP does not behave this way.