KDenlive on windows does not render fades
I always used Kdenlive on Linux but for a reason I just had to use it on Windows. I wanted to start the video with a slow fade in and a fade out, the fades on audio are rendered but not on video. I did the same as I do on Linux: Use the fade curve on the clip to fade from black to video and from video to black again at the end.
Kdenlive Version 23.08.5