Created attachment 184070 [details] before crash *** 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 Please remove this comment after reading and before submitting - thanks! *** SUMMARY STEPS TO REPRODUCE 1. paste contents into a and b. at least 1 should require word wrap. contents similar, not same. 2. enable Word Wrap Diff Windows 3. click into window A, select all, paste new content (ensuring its long enough to also require word wrap). OBSERVED RESULT The dialog box appears trying to load temp file. then kdiff3 closes without error. EXPECTED RESULT New content pasted and word wrapped appropriately SOFTWARE/OS VERSIONS Windows: 11 26100 macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION 1.12.5