Missing diacritical marks

[wakecarter]

What font are you using?

PsychoPy presenting text in Persian/Arabic

Please bear with me, as I can’t read Arabic. But this just seems to be a font limitation rather than a problem with PsychoPy itself. In the file you sent, the text component is set to use the font Open Sans. I changed this to Arial and the situation seems to be resolved. The screenshot below shows Open Sans above and Arial below. Is the lower version now correct? [Screen Shot 2022-02-13 at 16.42.20]