Everywhere in the program, menus, options, dimensions, tabs, schedules, etc, the angle degree symbol of "°" is replaced with "?"
I had the same issue with AC19
I am using Win 10 Pro English, AC20 INT.
Is it an Archicad issue or something related to Windows language and keyboard settings?
Are there any language or font settings in AC?
I have seen someone else reported a similar problem with fraction characters.