https://bugs.kde.org/show_bug.cgi?id=409615
--- Comment #6 from emohr <fritzib...@gmx.net> --- I followed your steps with your uploaded image with AppImage 19.04.3b. Drag/drop the image to the timeline (don't change the project settings). Right click on the image -> change speed -> change to 150% -> OK -> bottom left the error "change speed failed" pop up. No crash or freeze. Maybe you have a miss match between versions on your machine. Delete following files and try again: https://community.kde.org/Kdenlive/Configuration. BTW: change the duration of an image: make the image shorter or longer on the timeline by grabing the end of the image. -- You are receiving this mail because: You are watching all bug changes.