When embedding the same questionnaire multiple times in one course, the survey tool gets confused. The overview of the single questionnaires show the correct data, as does the raw data, but the individual questions always show the data from the first questionnaire. This happens because on selecting an individual question, the display jumps back to the corresponding question in the first questionnaire, never showing the correct selected question.
It only happens when embedding the same questionnaire more than once. See here :
Open the survey statistics. Opening the statistics of the second survey works, as it uses another questionnaire to survey 1 & 3. Upon trying to open a question in survey 3, the display jumps back to survey 1