Created attachment 112406 [details] The crash report the crash reporting thingy generated If I try to add the "Face Detection" or "Face Blur" effects to a clip, Kdenlive instantly crashes.
Please try with the actual Kdenlive AppImage version 18.08.2 Run the Appimage from the terminal (press CTRL + ALT + T). Move to the AppImage folder and run the .AppImage: ./Kdenlive*.AppImage
Effects, Misc: "Face Detection" or "Face Blur" effects. See Bugreport 398024, 2018-08-29. Painful missing veil Effects to mask Faces. Cause blacklisted, not threadsafe.