SUMMARY Check the box to select the start only one instance does not prevent starting new instances. STEPS TO REPRODUCE 1. Check the box for Start only one instance 2. go to Application menu and select Ktimer a second third even a fourth time 3. OBSERVED RESULT New instances of Ktimer start EXPECTED RESULT It should not start new instances SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.14.0 Qt Version: 6.9.1 Kernel Version: 6.15.1-1-MANJARO (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 9700X 8-Core Processor Graphics Processor: NVIDIA GeForce RTX 4070 Ti SUPER ADDITIONAL INFORMATION I noticed this behaviour ever since it was ported to KDE/Plasma 6/qt6. Unrelated but the Window size is never remembered.
Hi - the "Start only one instance" box is not for KTimer itself, but for the programs that it starts. If that box is checked, then KTimer would not start the indicated program again if it's already running from a previous triggering of that same timer. Hope that helps clarify!