Filter "Abgehackt" turns into app crash

OS: Linux Mint 18.1
Shotcut: v20.02.17

Shotcut crashes with filter “Abgehackt”, if there is an image or a video with transparent part [1] in a track over that image or video (with that filter):

[1] Also if e.g. a video is full size (in my case 1920 * 1080) and you then use 'Rot/Scale" filter and decrease size.

If the part with filter “Abgehackt” is above all is fine:

Yes, about a month ago I reported this as number 12 on my Bug Report thread:

Dan said that he fixed this for the next version. :slightly_smiling_face:

Maybe interesting…

If I add to that ‘Flower-17848.mp4’ a ‘Fade-In’ filter Shotcut crashes at once, because of the ‘Abgehackt’ filter. (Both mp4 files are 1920 * 1080…)
But only with ‘Preview Scaling’ not None…