https://bugs.kde.org/show_bug.cgi?id=370975
--- Comment #29 from Attila <bugs.kde.att...@online.de> --- Unfortunately it doesn't help (even sleep for 10 seconds), but you got me to try one more thing because I was curious. I have changed the line to Exec=/usr/bin/kdialog --msgbox "%f"; kde-open5 "%f" because I wanted to see what argument is passed to kde-open5. The result is that the argument is empty, when I click on "Open with File Manager" for the first time and the error message appears. When I click again on "Open with File Manager" the argument is like /run/media/MY_USER_NAME/dae9aaff-533c-40e0-ab5c-70d231620ad0/ and Dolphin shows the USB-Device without any error message. At this time the USB-Device is already mounted. I don't know anything about kde-open5. Does the call to mount a device happen in this application? Any idea? Can I try something else? -- You are receiving this mail because: You are watching all bug changes.