Random render artifacts
First of all I apologize that I had to make the persons and names unrecognizable.
I have created a video that was composed of many videos. At the end of that video i have added some "credits" where every person seen in the video gets a small 5 seconds credit. Each credit is faded in and out again. Then the next person is shown.
That credits section is built as follows (bottom to top):
- some music
- a black color clip for the length of the whole credits section
- text clip holding the name(s) of the person(s)
- one to three videos of the person,
- a fade in and out effect created by a black color clip that gets faded out and in again.
The timeline of the credits of one person looks like this:
The result is something like this:
Now at some random points (while fading) i get strange artifacts that can only be seen in the rendered video and only occure while fading in the credits section. The preview does not have this problem. Neither have other fading effects i use earlier in the video.
When i render the same project again without any changes i get different artifacts at different (random) places (but everytime only while fading in the credits section).
Now one of the artifacts (at the cursor position above):
Some more artifacts are:
- single frames with full brightness while fading
- single frames holding the wrong clip (and have the wrong position, brightness, etc.)
I am running kdenlive 20.04.2 on arch. Movit is neither used nor installed.
Let me know if you need more information or if i can help with debugging or so.