Thanks for the information. We will take care of that manual.
> But once it has been filled, you get the thank you for completing the test...
Did you create a pretest URL in "survey project" -> "pretest" ?
Please also check if you enabled the cookie feature in the project settings -> privacy. I suggest NOT to use cookies. But, if you have them enabled, than this will also be active in the pretest. Using a private browser window will allow to test the pretest URL without continue via cookie.
If it's not the cookies, please send me the pretest URL to info@soscisurvey.de, so I can check for issues.