Bug 476455

Summary: Effect Transform and composition Slide can't work together correctly
Product: [Applications] kdenlive Reporter: red_Arti <jijiliu35>
Component: Video Effects & TransitionsAssignee: Jean-Baptiste Mardelle <jb>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: git-master   
Target Milestone: ---   
Platform: Other   
OS: Other   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: project-file-and-screen-record

Description red_Arti 2023-11-02 06:22:24 UTC
Created attachment 162814 [details]
project-file-and-screen-record

SUMMARY
During composition Slide's time, the Transform effect can't render correctly


STEPS TO REPRODUCE
1. Add a color clip to track V1
2. Add a picture to track V2. The picture's shape is horizentally long and vertically short
3. Add Transform effect to the picture to make it larger
4. Add Slide composition to the beginning of the picture

(see the screen record video)

OBSERVED RESULT
During the Slide time, the picture gradually moves into the screen, but shape is wrong. 
The shape then become correct after the Slide time

EXPECTED RESULT
The shape of the zoomed picture should be always correct

SOFTWARE/OS VERSIONS
Kdenlive 23.08.2 (in flatpak on Linux x64 X11 KDE)