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