Hi,
I am now working on multiple files who are reversed using :
Clip Jobs > Duplicate clip with speed change > -100

The problem is that the thumbnail is a white frame, and the first time i play the clip, the white frame appears in the preview, but not after.
Even more annoying, the white frame is in my .mp4 render.

Since i can not delete the frame while working on my project, is there a solution to remove the white frames (Or a workaround in my Kdenlive? )

(I am on Arch/Gnome)

Thank you for your replies.

Do you tried with the AppImage? If not, please try with the current Kdenlive AppImage version 19.08.0a to see if there are any packaging issues https://files.kde.org/kdenlive/release/