Bug 513741 - Rotoscoping (Mask) impossible to move between keyframes.
Summary: Rotoscoping (Mask) impossible to move between keyframes.
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Effects & Transitions (other bugs)
Version First Reported In: 25.08.3
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2025-12-23 12:25 UTC by romain
Modified: 2026-02-07 03:51 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
Add an attachment

Note You need to log in before you can comment on or make changes to this bug.
Description romain 2025-12-23 12:25:15 UTC 
SUMMARY
Rotoscoping (Mask) impossible to move between keyframes.

STEPS TO REPRODUCE
1. Apply rotoscoping (Mask) on a clip.
2. Rotoscope any shape.
3.Create a new keyframe and  move the  mask.

OBSERVED RESULT
The mask won't move globally. But you can move the nodes and handles individually.

EXPECTED RESULT
Being able to drag the mask.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Ubuntu studio
KDE Plasma Version: 5.27.12
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13

ADDITIONAL INFORMATION
Rebooting kdenlive makes the trick. However, having to reboot between each keyframe is tedious.
Comment 1 Jean-Baptiste Mardelle 2025-12-31 15:03:15 UTC 
I cannot reproduce in 25.08.3 AppImage, downloadable from here:
https://download.kde.org/Attic/kdenlive/25.08/linux/

The mask can be dragged using the cross located in the center of the shape.

Also, I find it very strange that you mention having a Qt5 / KF5 based system. Kdenlive 25.08.x requires Qt >= Qt 6.5.
Could you paste the debug info from the Kdenlive's Help menu > About Kdenlive > Components
Comment 2 romain 2026-01-08 17:19:52 UTC 
   Well, precisely the mask can't be dragged. I will look if there is any
   update for Qt on my system.

     envoyé : 31 décembre 2025 à 16:03
     de : Jean-Baptiste Mardelle <bugzilla_noreply@kde.org>
     à : romain.hoareau@wanadoo.fr
     objet : [kdenlive] [Bug 513741] Rotoscoping (Mask) impossible to
     move between keyframes.


     https://bugs.kde.org/show_bug.cgi?id=513741

     Jean-Baptiste Mardelle <jb@kdenlive.org> changed:

     What |Removed |Added
     ----------------------------------------------------------------------------
     Status|REPORTED |NEEDSINFO
     Resolution|--- |WAITINGFORINFO

     --- Comment #1 from Jean-Baptiste Mardelle <jb@kdenlive.org> ---
     I cannot reproduce in 25.08.3 AppImage, downloadable from here:
     https://download.kde.org/Attic/kdenlive/25.08/linux/

     The mask can be dragged using the cross located in the center of
     the shape.

     Also, I find it very strange that you mention having a Qt5 / KF5
     based system.
     Kdenlive 25.08.x requires Qt >= Qt 6.5.
     Could you paste the debug info from the Kdenlive's Help menu >
     About Kdenlive >
     Components

     --
     You are receiving this mail because:
     You reported the bug.

   > You reported the bug.
Comment 3 Bug Janitor Service 2026-01-23 03:48:18 UTC 
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2026-02-07 03:51:05 UTC 
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.