I have the same problem. In fact, it's even been mentioned on a Lynda.com course by a well known author on Illustrator. He is running Windows 10, I am running the latest version of Mojave, so it seems to be OS independent. The issue appears to be one of trying to save to the default Templates folder on the drive.
I have the same problem. In fact, it's even been mentioned on a Lynda.com course by a well known author on Illustrator. He is running Windows 10, I am running the latest version of Mojave, so it seems to be OS independent. The issue appears to be one of trying to save to the default Templates folder on the drive.