Function keys only working after hotkey remap

[elabx]

I am new to Wings3D and through my process of learning the interface I noticed that F6 and F7 (which default to next loop/previous loop) only work if I remap them, other hotkeys seem to work fine aside from the ones asigned to the function keys.

My keyboard is a Mac USB Keyboard with numerical keypad in english.

Wings version : 1.5.3
OS: OS X 10.9.4

I tried this in version 1.5.2 and 1.5.3

Wings3D is such a great piece of software