I’m not sure what you mean exactly when you say that a character is “missed” — do you mean it’s skipped in the mapping process? (i.e. leading to an offset in the expected results?)
Beware that keyboards can be tricky, and that when working with non-USA keyboards the drivers often do some strange characters manipulation, so don’t give for granted that they key you press always results in the correct ASCII character being sent to the operating system — often there are encoding issues inbetween.
Using the numpad is not the same as pressing the equivalent keys on the main keyboard, and different language (locale) keyboard layouts produce different results. Many software which have default keyboard shortcuts that seem “normal keys” often don’t work in certain locale layout, because the operating system interface is more complex than just the “character” but actually takes in consideration the “key value”, which what makes it possible to treat the left and right SHFT keys differently, as well as the numpad keys differently from their counterparts on the main layout.
To test if the problem is with PM or your keyboard driver, you should try using the Windows on-screen keyboard (OSK) to carry out the same operations, and see how PM works with it:
if the problem persists with the OSK, then it’s a bug in PMNG, otherwise it’s a problem with the keyboard interface — which might be solved in different ways.
I have an Italian keyboard, and noticed that many of the default keyboard shortcuts don’t work for me, even if I have those keys on my keyboard — but these keys don’t have the same mapping as a USA keyboard, so they fail to work even if they should.
In my experience, being able to properly cover all the possible keyboard layouts is almost impossible, especially since many keyboards deviate from standards via custom drivers (e.g. gamers keyboards) or by extra tools they install to add custom functionality (e.g. to launch specific software via custom key combinations, etc.).
The best solution is when a software exposes to end users customization of all the keyboard shortcuts, via the settings panel. Usually, entering the key combinations using your own keyboard solves the problem, even when the keys involved seems the same as the default settings.
But the ultimate test is to use to On-Screen Keyboard, or to fiddle with the keyboard layout settings (e.g. telling Windows to treat your keyboard as a USA layout)…
