I tried the sguid code that you listed above but it still isn’t allowing respondents to return back to where they left off.
I don’t see anything listed above, so it’s a bit difficult to know what you are referring to. Have you reviewed SurveyGizmo’s documentation about the sguid feature:
Keep in mind the ‘save & continue’ aspect of this is based on page submission so respondents progress is saved when they click Next or Submit on a give page. If they close an in-progress page, only data collected on the previous page would be saved.
Hope this helps clarify!