It seems the new handling of case is interfering with the display of the Preset Editor, at least for me.
There is a double space in the case statement on the line where the error is.
The error message it gave wasn't quite accurate, because the actual string was the empty string, not one with whitespace in it. I modified it to skip over empty strings. So, it works now.
The error message it gave wasn't quite accurate, because the actual string was the empty string, not one with whitespace in it. I modified it to skip over empty strings. So, it works now.