Hi Daniel Plomp,
Unfortunately, we were not able to reproduce this behavior with Sitefinity SP2.
Please make sure that you have done the following:
1. Set both NewsList and SingleNews pages as Normal pages.
2. Published both NewsList and SingleNews pages.
3. Set the NewsListUrl
property of the SingleNews control to point to the page with the NewsList control.
4. Set the SingleNewsPage
property of the NewsListControl to point to the page with the SingleNews control.
Let us know if you are doing anything differently or if we are missing something.
All the best,
the Telerik team