Comment # 17 on bug 963680 from Wolfgang Bauer

(In reply to Jean-Claude Dole from comment #16)
> Today, after a new install, and after doing a "zypper up", I am still unable
> to create a link to application from Desktop Folder.

And what version of kio do you have installed?

As I wrote, you will get the fix with the update to 5.19.0.
At the moment that's only available in KDE:Frameworks5 though.