Hi I want the current QID and current GID in my JS code so I add them via:
- var gid = {GID}
- var qid = {QID}

But as you can see in the screenshot of the source code of the loaded survey I get completely wrong codes back

The question id is 3659 but {QID} delivers me 3832

Bug or my mistake?
I use the current version of LS and the survey is in preview mode

What version of LimeSurvey is used? I would attach a small survey with your code here. That way others could easily try to reproduce the issue on other installations.
Did you try your example on demo.limesurvey.org?