maybe you have the following box checked?
i think what you want is to uncheck it, which will let you type numbers when numlock is on. works for me. if it doesn't work for you, do you have a non-english keyboard maybe?
the option lets you choose between whether to use the numpad to either launch results by # or type numbers when numlock is on:
that should do what you want.Ā however it occurs to me that another option might be desired, which is to always act like numlock is on, even when it isn't; i think i will add that next.