[kdenlive] [Bug 499181] New: Closing the 'Manage Subtitles' window induces immediate crash.

[Dylan]

https://bugs.kde.org/show_bug.cgi?id=499181

            Bug ID: 499181
           Summary: Closing the 'Manage Subtitles' window induces
                    immediate crash.
    Classification: Applications
           Product: kdenlive
           Version: 24.12.1
          Platform: macOS (DMG)
                OS: macOS
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: Title Clips & Subtitles
          Assignee: jb at kdenlive.org
          Reporter: dylangarbrickcg at yahoo.com
  Target Milestone: ---

SUMMARY
While editing subtitles, when opening the 'Manage Subtitles' window to make
edits to styles, subtitle layers, etc., the moment the window is closed out of,
whether pressing the 'Close' button in the bottom right or the 'X' in the top
left of the window, the entire application hard crashes and gives a report,
with the summary report below.

STEPS TO REPRODUCE
1. Open kdenlive.
2. Add a subtitle layer.
3. Select 'Manage Subtitles' from the dropdown on the left side of the subtitle
layer.
4. Close out of the window that appears.
5. Application immediately crashes.

OBSERVED RESULT
Entire program terminates.

EXPECTED RESULT
'Manage Subtitles' window expected to close to continue editing.

SOFTWARE/OS VERSIONS
macOS: Sequoia 15.1.1
Qt Version: 6.7.3

ADDITIONAL INFORMATION: CRASH SUMMARY
-------------------------------------
Translated Report
-------------------------------------

Process:               kdenlive [9640]
Path:                  /Applications/kdenlive.app/Contents/MacOS/kdenlive
Identifier:            org.kde.Kdenlive
Version:               24.12 ()
Code Type:             ARM-64 (Native)
Parent Process:        launchd [1]
User ID:               501

Date/Time:             2025-01-26 23:24:51.2377 -0500
OS Version:            macOS 15.1.1 (24B2091)
Report Version:        12
Anonymous UUID:        A8932234-11AB-5B30-A68A-AAC983D2D2E3


Time Awake Since Boot: 5900 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x00000000000000db
Exception Codes:       0x0000000000000001, 0x00000000000000db

Termination Reason:    Namespace SIGNAL, Code 11 Segmentation fault: 11
Terminating Process:   exc handler [9640]

VM Region Info: 0xdb is not in any region.  Bytes before following region:
4376805157
      REGION TYPE                    START - END         [ VSIZE] PRT/MAX
SHRMOD  REGION DETAIL
      UNUSED SPACE AT START
--->  
      __TEXT                      104e0c000-105718000    [ 9264K] r-x/r-x
SM=COW  /Applications/kdenlive.app/Contents/MacOS/kdenlive

Thread 0 Crashed::  Dispatch queue: com.apple.main-thread
0   QtCore                                     0x108b47100
QObject::blockSignals(bool) + 4
1   kdenlive                                   0x1050742d4 0x104e0c000 +
2523860
2   kdenlive                                   0x1050743c0 0x104e0c000 +
2524096
3   QtWidgets                                  0x1086b4d68 QDialog::exec() +
412
4   kdenlive                                   0x105468cb8 0x104e0c000 +
6671544
5   kdenlive                                   0x1054870d0 0x104e0c000 +
6795472
6   QtCore                                     0x108b4eff4 0x108a6c000 + 929780
7   QtCore                                     0x108b618a0 0x108a6c000 +
1005728
8   QtCore                                     0x108b46b6c
QObject::event(QEvent*) + 104
9   QtWidgets                                  0x10847c61c
QApplicationPrivate::notify_helper(QObject*, QEvent*) + 336
10  QtWidgets                                  0x10847d5d8
QApplication::notify(QObject*, QEvent*) + 504
11  QtCore                                     0x108afec0c
QCoreApplication::notifyInternal2(QObject*, QEvent*) + 212
12  QtCore                                     0x108c85edc
QTimerInfoList::activateTimers() + 1144
13  libqcocoa.dylib                            0x10a1bc1a4 0x10a1a4000 + 98724
14  CoreFoundation                             0x182fe1d34
__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
15  CoreFoundation                             0x182fe1cc8 __CFRunLoopDoSource0
+ 176
16  CoreFoundation                             0x182fe1a2c
__CFRunLoopDoSources0 + 244
17  CoreFoundation                             0x182fe05c8 __CFRunLoopRun + 840
18  CoreFoundation                             0x182fdfbc4 CFRunLoopRunSpecific
+ 588
19  HIToolbox                                  0x18e451f64
RunCurrentEventLoopInMode + 292
20  HIToolbox                                  0x18e457d54
ReceiveNextEventCommon + 636
21  HIToolbox                                  0x18e457eb8
_BlockUntilNextEventMatchingListInModeWithFilter + 76
22  AppKit                                     0x186b0b98c _DPSNextEvent + 660
23  AppKit                                     0x18744bddc
-[NSApplication(NSEventRouting)
_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688
24  AppKit                                     0x186afea64 -[NSApplication run]
+ 480
25  libqcocoa.dylib                            0x10a1bcdfc 0x10a1a4000 + 101884
26  QtCore                                     0x108b09d50
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 1112
27  QtCore                                     0x108aff430
QCoreApplication::exec() + 136
28  kdenlive                                   0x104e245fc 0x104e0c000 + 99836
29  dyld                                       0x182b78274 start + 2840

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