How to test
This is the most common culprit. Many amateur font designers use free software like FontForge or BirdFont but forget to fill out the font’s metadata. When the software asks for the "Preferred Family Name," the designer leaves it blank or accepts the default "New Font." Font Substitution Will Occur Dafont
on how to properly install DaFont files to prevent this error in the future? How to test This is the most common culprit