@curry-brisket said:
the font is 'YDW aosagi'
How are you entering the font to the font input of the text draw actor? Are you typing the name, or using a trigger text?
Have you tried using selection menu provided by the font input when you click on the font name shown in the input. The list of fonts can be a little hard to work with if you have a lot of fonts installed. It will however ensure you are selecting a font by the correct name and that the font is recognized by Isadora.