Vidi preko Control Panela u Windowsu u Fonts sekciji da li u sistemu postoji instaliran GDT Regular font, AIGDT Regular, AMGDT Regular...(kod mene je Win 10, imama instalirane AutoCAD-ove 2002 i 2015 i u oba rade GDT karakteri kroz Tolerance dialog box)
Mislim da ih u sistem i instalira Autodesk kroz AutoCAD
Link koji moze da pomogne (savetuje repair ili reinstall instalacije AutoCAD-a) u slucaju kao tvoj:
https://knowledge.autodesk.com...ead-of-symbols-in-AutoCAD.html
The eye through which I see God is the same eye through which God sees me; my eye and God's eye are one eye, one seeing, one knowing, one love.