You may find that non-English characters in question and answer text are replaced by underscores (_) in LMS debug logs or reports.
Storyline and Studio replace non-English characters with underscores when communicating with an LMS to conform to AICC and SCORM standards. These standards only support letters, numbers, and a few special characters, such as !, $, %, and *. (SCORM 2004 supports more characters. However, many LMSs don't recognize them, so Storyline and Studio send underscores to prevent reporting errors.)