Comment 5 for bug 997284

I can confirm this behavior in EG 2.11.2, but I see a slightly different error message:

Error loading preferences: Could not js-ify the JSON: SyntaxError: JSON.parse: bad control character in string literal

I tested with a Czech template name "naučná", a Russian template name "Новая Книга", and a Hebrew template name "ספר חדש" so this may be an issue with any non-standard Latin letters as well as non-Latin alphabets in general.

I created the Czech template using the cs-CZ locale, the Russian template in the ru-RU locale, etc. The new copy templates saved without an error message. After creating the template, I see the error message any time I try to load the Item Attribute Editor or make a change to a field in the editor. I'm seeing the error message regardless of which locale I'm using.

Also, after testing I deleted the Czech/Russian/Hebrew templates, set my staff client to en-US and restarted it and I'm still seeing the error message when I load the Item Attribute Editor.