Created attachment 171068 [details] a video of how it can be reproduced *** If you're not sure this is actually a bug, instead post about it at https://discuss.kde.org If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** SUMMARY STEPS TO REPRODUCE 1. Enter 2 + 2 2. Press Enter and see the result 4 3. Enter + 6 OBSERVED RESULT It just starts a new expression from the start, displaying +6 EXPECTED RESULT because an operator is entered before the number, it must use the result of the previous expression as the first input number. So it must show 10 SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 6.1.0 KDE Frameworks Version: 5.116 Qt Version: 6.7.2 ADDITIONAL INFORMATION
*** This bug has been marked as a duplicate of bug 487566 ***