1. Upgrade from 5.2.9 EE to 6.1.20 EE
2. Add Asset Publisher
3. Go to Configuration, select Asset Selection "Manual"
4. Select Existing --> Web Content
5. Choose one Web Content
6. It will not display the choosen Web Content but another arbitrary one
7. Choose a second Web Content
8. It will display the same Web Content as above (6.) but not the choosen one
9. Add a new Web Content with version 6.1.20 EE
10. Add Asset Publisher
11. Go to Configuration, select Asset Selection "Manual"
12. Select Existing --> Web Content
13. Choose the newly created Web Content
14. It displays the correct choosen one
My question: What is the difference between Web Contents created in 5.2.9 and 6.1.20 that makes the Asset Publisher not work?