Bug 514590 - Crash when ticking/unticking Show Record Controls on the audio track
Summary: Crash when ticking/unticking Show Record Controls on the audio track
Status: CONFIRMED
Alias: None
Product: kdenlive
Classification: Applications
Component: Audio Effects & Transitions (other bugs)
Version First Reported In: 25.12.0
Platform: Microsoft Windows Microsoft Windows
: NOR crash
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2026-01-14 12:48 UTC by Guy Olivier de Saint Albin
Modified: 2026-01-14 20:52 UTC (History)
1 user (show)

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Description Guy Olivier de Saint Albin 2026-01-14 12:48:48 UTC 
SUMMARY
Kdenlive crashes when using show/unshow record controls in the timeline several times

STEPS TO REPRODUCE
1) Open Kdenlive
2) Press New project… button
3) Press Ok on the Project Settings window
4) Right click on audio track on the time line and tick Show Record Controls
5) Right click on audio track on the time line and untick Show Record Controls
6) Right click on audio track on the time line and tick Show Record Controls

OBSERVED RESULT
Application freeze and then crashes

EXPECTED RESULT
Just showing/unshowing Record Controls in the timeline.

SOFTWARE/OS VERSIONS
Windows: Windows Windows 11 Professionnel
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
This a fresh installation of Kdenlive on my computer, no Kdenlive app before.
Other users have confirmed the same issue on Linux on the forum: https://discuss.kde.org/t/crash-when-ticking-unticking-show-record-controls-on-the-audio-track/43381

Report 1:  I can confirm this also exists on 25.12.0 Flatpak and appimage 25.12.0-B on Pop!_OS. Please open a bug report.

Report 2: Can confirm same behaviour here on MX Linux

kdenlive-25.12.0-B-x86_64.AppImage

Kernel: 6.6.11-amd64 [6.6.11-1~mx23ahs] arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
parameters: BOOT_IMAGE=/boot/vmlinuz-6.6.11-amd64 root=UUID= ro
Desktop: Xfce v: 4.18.1 tk: Gtk v: 3.24.36 info: xfce4-panel wm: xfwm v: 4.18.0 vt: 7
dm: LightDM v: 1.26.0 Distro: MX-23.2_ahs_x64 Libretto October 15 2023 base: Debian GNU/Linux
12 (bookworm)

Actually I saw this the other day but didn’t report it. Essentially the same process but activated differently. I activated it in the Audio Mixer. I clicked on the Audio Monitor (MIC) icon. Doing it 3 times does the same thing.