Naga on Mac: Can't assign modifiers to side buttons on mouse

[Don't know if this should be here or in the general Razer Support forum. Mods, please feel free to move it if it is a better fit elsewhere.]

I have a Naga Chroma that is not able to play some MMOs on a Mac because it requires some keybinds (for example, Ctrl-1 by holding down the control button AND the 1 button at the same time.

I have determined, both with the Mac's Keyboard Viewer AND the xev tool in X11 (now called XQuartz), that even with the modifier buttons (control, alt, shift, command) remaining pressed down, when you press (say) the number 1 button on the side of the mouse, the system no longer thinks the modifier key is pressed. In other words, even when Ctrl is held down, pressing '3' on the side of the mouse sends the game a '3', not a 'Control-3'. Using the combo entirely on the keyboard works; if I press the 3 on the keyboard I get Ctrl-3, but when I use the mouse button for '3', I get only 3.

Is there any fix or workaround for this? (Not to mention that the Synapse software version 1.86.4 *crashes* any time I try to change the lighting on the thumb grid or the logo; that's another issue, but only cosmetic.) . Love the hardware, but the software has been a problem lately.