Problem solved. It is not bug, it is just normal behaviour.
If you put a end url, what limesurvey does is redirecting you to this url as soon as you reach the end page, which means you won't see the end page.
You can't have both, either the redirect OR the end page.
So there are a few things that you could do if you want a end message and then a redirect:
- You could put a simpel text display question with your end message and then use the end url, this means it will still skip the end page but you have your own endpage (manual.limesurvey.org/Question_types#Text_display)
- Or you could include the URL to your website as a link on the end page.