Please email me directly on this issue: email@example.com. The software is currently programmed to force a respondent to start over at the beginning of the survey if anything on the link changes. For example if you have a pass-in variable "region" your link might look like this:
If the next time you return to the survey your link has changed such that region is 2 for example:
The survey restarts at the beginning. The respondent will see prior answers but will have to click "Next" until they return where they left off.
This is by design because we don't know if the pass-in information controls skip logic etc. Imagine that you are linking two surveys and passing information from one to the other via pass-in variables. If you backed up and changed an answer in a prior question in the 1st survey you would need to see all the questions again going forward in the 2nd survey.
Even though the software is designed this way we want to find out more from you. I realize this design has not been good for some people. Maybe we could figure out a solution that would make everyone happy. Again, please email me if you have ideas or want to discuss this further.