Hi! 

I and others in our practice have recently updated to 2022. We use the font Heiti SC regular. This displays when in autocad but once PDFed using dwg to pdf. pc3 the text errors as in the below screenshot. The font is correctly installed on the system, it has been replaced, to check it is not corrupt, this had no impact. Solution welcome?! tried allsorts and had no luck so far. I am on Mac OS Monterey 12.2