The current Kdenlive on Windows® (Januar 2019, version 18.12.1) has a few issues that have workarounds. The purpose of this wiki page is to document these issues and their workarounds.
JPG files appear as white picture after rendering
Convert the JPG to PNG and it renders correctly. The problem will be solved with the upcoming Windows 18.12.3 version and the refactoring version.
This issue is solved since the Windows version 18.08.2 (30. Oct 2018). To get the current version click on: 18.12.1.
Qt rendering crash
When switching from kdenlive for windows 17.12 --> 18.04/18.08, a Qt rendering crash appears. To make sure this doesn't happen, you need to edit the kdenliverc file in the appdata. To access your appdata, press Win + R (Windows key and R key simultaneously) and type APPDATA (all caps). Go to local and within it rename kdenliverc to kdenliverc.old.
Any critical bug
This describes the process of doing a clean install on Windows®.
Firstly, delete your normal Kdenlive folder (containing the application)
Access the Appdata folder (Win + R and then type APPDATA in full caps). Go to local and search for folder kdenlive.
Then once you have backup up your library folder, delete the kdenlive folder.
Reinstall the latest version of Kdenlive from https://kdenlive.org/en/download/
Kdenlive cannot be deleted, running process on exit
This issue is solved with the latest Windows version 18.12.1. To get this version click on: 18.12.1.
If you want to reinstall Kdenlive or re-run ""Kdenlive"", it may tell you "The file or folder is open in another program". Windows® then won't let you delete or re-run Kdenlive.
To fix this you have to kill the running process: press and hold Ctrl + Shift + Esc & expand the task manager by clicking . Then find kdenlive.exe & dbus-daemon.exe, and click for both of them.
Or download the File:Kdenlive-kill.zip. Unpack it and just double-click the batch file which kills all running Kdenlive processes.
Kdenlive cannot be uninstalled
If the uninstaller doesn't work you can delete following folder: C:\Program Files\kdenlive . You have to manually delete in the start menu the Kdenlive folder.
"Clip is invalid, will be removed"
This bug can appear if you do a clean reinstall of Kdenlive (see above). Simply close and open Kdenlive once, and it should be fixed.
Kdenlive crash or green Monitor
Get all newest Windows® updates. Afterwards, update your graphic card driver and your sound card driver and your printer driver. Some crashes could occur of incompatibility of the graphics card and sound card with the newest Windows®10 updates (18.09 update). After you have updated the drivers re-start the computer and try again by starting kdenlive.exe.
If this is not solving the problem switch your standard printer to “Microsoft XPS Document Writer” and try again to start Kdenlive.
Delete the “Kdenliverc” file as descript here under Qt rendering crash
Make sure you set processing thread to 1: CTRL+SHIFT+, (comma) -> environment -> Processing thread -> set to 1
The current Kdenlive version (November 2018, version 18.08.3) has a few issues that have workarounds.
Audio Pops and Ticks in Render
If this problem appears make sure the audio file is: 16-bit PCM WAV.