problem with fonts

[Bigmanni]

Hi, i use the Ugui with your STM32 projekt. Its works fine (very good work).
If I create a font with the converter ( ttf2ugui) it works fine, even if I create a font with numbers only (--chars=48-57).
But if I create e.g. a space and numbers (--chars=32,48-57) then the display shows garbage.
do only sequential characters work or is there still a buck?

thx for your work