Filter "Abgehackt" turns into app crash

[Earlybite]

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:

[DRM]

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

Bug Report v19.10.20

12) Add the Choppy, Stabilize, Rutt-Etra-Izer or Text: HTML filter to a video. Add a transparent clip above it. Set the Preview Scaling to 360p or 540p. Have the playhead pass through the section with transparent clip. Shotcut will crash. If you have the Preview Scaling to 720p Shotcut will not crash but instead of the text appearing there will be a visual glitch. 13) The Cut option in Transitions is broken. This issue seems to be related to bug #3 in this thread’s report which hasn’t been addr…

Dan said that he fixed this for the next version.

[Earlybite]

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…