Character not being rendered correctly even it's in the font

[Alex-joomla]

Question

I call a service node in node red to add a Icon_screen:

{
    "icon_name": "dishwasher",
    "text": "{{payload}}",
    "lifetime": "1",
    "screen_time": "1",
    "r": 255,
    "g": 255,
    "b": 255,
    "default_font": true
}

payload is this: "Geschirrspüler: finished / noch 0 Minuten"

But what I get are two big white blocks with a x2F in the middle instead of the Dash. The Dash is a Glyph, i know, but it's availible in my font:

font:
  - file: CalciumThin.ttf
    id: default_font
    size: 16
    glyphs:  |
      !?"%‰()+*=,'-_.:°µ²³0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnÖÄÜöäüopqrstuvwxyz€$@<>/

• used Hardware:

  • Ulanzi PixelClock

  • EspHoMaTriXv2, newest

Logs

Additional context