[itsme]

Oh, sorry, my fault. I added the blank in [B ] when I described the content of the file in the post's text to avoid that [B] is misinterpreted as "bold" by the forum rendering. And forgot to remove the blank when I copied it to the source file.
Next try:
erroneous blank removed from the source file => all chords detected as valid chords
I only changed the defaults in Text File Settings, didn't use "meta notation:"
default source localization is always German
default display localization German:
   
transposed
   
expected: B  H  C  Db

[itsme]

here's what goes wrong with the forum rendering:
marked the chords in brackets [A] and as bold in the forum editor
same text [b][A] and without the blank
    [/b]

[Zubersoft]

That is true - the forum text editor is going to do some funky stuff if it detects a b in brackets.

I believe I've fixed all the localization issues. It would be great to get confirmation after the next update is available.

Thanks,
Mike