When I create a slideshow (now called "Image Sequence"), there are some strange behaviors I've noticed.

1. When using parallel processing during rendering, the next image will take on the size of the image before it, and jump to its correct size after the transition (I have dissolve checked). You can see this behavior here: https://youtu.be/Dx-Da0hGxKE
However, this goes away when parallel processing is turned off (seen here: https://youtu.be/7y8P_rTtDGY).

2. During the dissolve transition, the background is black on the first frame of the dissolve and fades to transparent at the end of the transition. The background should be transparent throughout the transition. Is there a way to workaround this, or do the developers need to redo the Image Sequence code to fix it?

Running Kdenlive 20.08.0 on MX Linux 19.4

Parallel processing is «experimental». Some effect doesn’t work with parallel processing. Most of the effects are libraries on which we have no access. Some of these effect libraries are not parallel processing “proof”. So, disable parallel processing if you experience render problems.

Merlimau wrote:Parallel processing is «experimental». Some effect doesn’t work with parallel processing. Most of the effects are libraries on which we have no access. Some of these effect libraries are not parallel processing “proof”. So, disable parallel processing if you experience render problems.

Well, that explains it, but, it doesn't say it's experimental on the render dialog, so that was unclear. Thanks, though.

https://ibb.co/XDJ8KJF
it does say it's experimental