SUMMARY If you want to slow a clip which does not have (enough) space after it, then the effect does nothing. STEPS TO REPRODUCE 1. Add a clip to project bin and the timeline. 2. Cut the clip into at least two parts. 3. Use the speed effect on other than the last clip. (So there should be no space after the clip.) Try to slow down the clip (choose less than 100%). OBSERVED RESULT Nothing happens, the clip still plays at 100%. EXPECTED RESULT Few ideas: - There should be an error message that there is non enough space after the clip, so the speed effect can't be applied. - Notification in the change speed dialog box that there is not enough space after the clip. - A new option in the change speed dialog box to move all the clip backward which are after the clip which you want to apply the speed effect. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Tested with Kdenlive 23.08.4. Now there is an error message popping up that the clip speed cannot be changed. I close this bug. If it still appears in the latest version, please feel free to re-open it and update the affected version number.