When opening some Qt5 application on Wayland that uses tooltips, they will appear on the top-left corner until the window is clicked. Steps: 1. Open a Qt5 application (tested with System Settings and KInfoCenter) 2. Without clicking the window, hover somewhere to show a tooltip. It will appear on the top-left corner. 3. Click the window, and hover it again. It will display correctly. Reproductible: Always.
the tooltips of System Settings and KInfoCenter are already fixed in the respective applications. From KWin side it's an invalid bug as it's a problem in the application.
Thanks for the answer, glad to see it is fixed. Will the fix be released on 5.9?