[BUG] Shift + Numpad Keybinding Broken

For a long time I have set my Profession Skills to be:

• Shift + Numpad 1
• Shift + Numpad 2
• Shift + Numpad 3
• Shift + Numpad 4
• Shift + Numpad 5

And I have been using a Logitech G600 with the thumb buttons being the Numpad Keys. Within the last patch or two, these keybinds no longer function. I have this issue on two distinct computers, both computers have their own G600 mouse.

When I try to re-create the keybind to these Shift+Numpad pairs, the UI wigs out. However, I can create CTRL+Numpad keybinds just fine.

Thoughts??

I should also note that the key combinations do not work if I use nothing but my keyboard.

Not sure if it matters or not, but both of my computers are on Windows 10

Seems to be related to Num Lock. Works for me if Num Lock is off.