uxomm
Thanks, that did provide quite some help!
I had figured out that a limited keyboard layout was in use, and I am now doing all testing in an US environment. And I try to convert those relatively few characters that need it.
DK characters now work fine transmitted as AltGr + Z, L and W on the US extended keyboard.
Coming to your little sketch.
It delivers 94 visible character, plus Space, I guess. Making it the expected 95.
I have encountered a peculiarity with that, however.
0xB5 - _
0xB6 = +
0xB7 [ {
0xB8 ] }
0xB9 \ |
0xBA \ |
0xBB ; :
0xBC ' "
0xBD ` ~
0xBE , <
0xBF . >
As you can see for 0xB9 and 0xBA I am missing the '/' + '?' key!
If that key is somehow unavailable on my system, it could explain why I have not been able to work my way around those particular characters today.