The link is still there.
Itīs just that instead of using the link in title direct to open in a browser
I have to use "right click" on the title - which opens the menu in viewer
- and then use "copy link" and then paste it manually in browser.
If I click on the title it just flashes briefly instead of opening in a browser.
-->
solved
No idea what happened

but after restarting my PC it works again as before.
Click on title or author opens direct in browser.
thanks anyway for trying