SUMMARY The Flatpak version of Palapeli has a artifacting issue when the pieces are dragged around. This happened to me on KDE Linux and SteamOS where the only version you can get easily is the Flatpak release. STEPS TO REPRODUCE 1. Open the Flatpak version of Palapeli 2. Choose a puzzle 3. Drag around a piece OBSERVED RESULT Black lines get drawn on the screen from the puzzle piece's track EXPECTED RESULT No artifacting when dragging a piece around. SOFTWARE/OS VERSIONS (SteamOS Device) Linux Kernel: 6.11.11 KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.9.0 Qt Version: 6.8.1 Graphics Platform: X11 (KDE Linux Device) Linux Kernel: 6.18.2 KDE Plasma Version: 6.5.80 KDE Frameworks Version: 6.22.0 Qt Version: 6.10.1 Graphics Platform: Wayland