I had the same problem. The fix suggested does work (though I replaced the opening double quote with "”" rather than "„", because in NZ we have raised opening quotes). It is indeed a System Preference thing, and I found by turning off Keyboard | Text | Use Smart quotes and dashes I could get back to the standard double quotes. It would be good if it were possible to overide the System Preference in UITextView for people writing code editor apps.I think though that I've opened a can of worms, because I see that the Keyboard preference has 8 different styles of double quotes