I experienced the same problems. I created an Desktop file to open an application, but with left click it don´t works.
The File ist executable and works, I´m sure. Even if i create an Desktop-Link with rightclick on an application in the start menue, it is shown immediately on the desktop, but it don´t works with leftclick or enter.
The joke is, if you rightclick on the desktop icons an choose „Open“ the it works. Something is wrong with the leftclick action. It is not a matter of double click timing, i tried it already.
Please help! Thanks…