Created attachment 112623 [details] green color is white Actual Version: 18.04.1 I am not sure if this a user interface thing, a problem with the desktop environment that I am using (gnome) or something else. But it started happening within the last few days. I create a new project. I add a color clip, change it to another color (let us say: green). The color clip appears in the project bin with a white preview. I drag the clip to the video timeline and play through it, the project monitor stays white. I click on the clip monitor tab and hit play, the monitor window becomes green (as in, it is white, first, then flips to green). So something is happening with color and kdenlive. Problem (which would be a new ticket, but I hope solving this issue will fix the one that I am about to describe, but might still be related): When I play a movie in the 'clip monitor' window, the background color is black. When I put it in to the video timeline and play in the 'project monitor' tab, the background is white. I am not above saying that it could be a user issue, but it is odd that a color clip is not showing in the 'project monitor'.
I may have figured it out: The 'Track Compositioning' is set to 'High Quality'. If I set it to 'None', the color works. I will leave this ticket open, just to make sure that it is supposed to work that way.
I discovered the same problem today. Since I use this function frequently I am sure that it is new in version 18.04.1. The workaround to set the quality to "None" is not a real solution, because after rendering there remains still a white frame at the beginning, resulting in a visible short white flash in the movie. The function is currently unusable.
Changing the color of a color clip works, incl. render. Tested with 18.12.0 (AppImage, Windows) and Refactoring version. We closed this bug. If it still appears in the latest version, please feel free to re-open it and update the affected version number.