Link in PDF missing

Hello, I am using scrivener since a few minutes and allready looked some tutorials.

One problem i am facing in the moment is following:

When i am adding an internal ScrivenerLink, to an Text in an chapter the link is in scrivener present.
After export to pdf via scrivener, the link is not present and not working.

How can i make an PDF working with Chapter Links. Eg. for the ChapterList?

Best regards fairsuchen