Thanks for reporting. There does seem to be some instability on macs with Apple chips. I have run some simple tests and things run fine, but we have seen previous issues indicating that the on-the-fly run time code conversion is not the same as running on native hardware. So until Apple fixes their emulation layer or Slicer is ported to the new architecture there are likely to be edge cases that fail.
I tested the basic flow described by @semredogan and got the crash report below basically instantly when using the scissors on my first try. Later attempts to do the same thing did not crash. I’ve never seen this on non-Apple CPUs.
For now I’d say the best option is to save often or use a different computer for intensive work.
Crashed Thread: 0 CrBrowserMain Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000030
Exception Codes: 0x0000000000000001, 0x0000000000000030
Termination Reason: Namespace SIGNAL, Code 11 Segmentation fault: 11
Terminating Process: exc handler [6040]
VM Region Info: 0x30 is not in any region. Bytes before following region: 140722657165264
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
--->
mapped file 7ffc8bfe0000-7ffc92e98000 [110.7M] r-x/r-x SM=COW ...t_id=cbf25fb1
Error Formulating Crash Report:
dyld_process_snapshot_create_for_process failed with 5
Kernel Triage:
VM - pmap_enter retried due to resource shortage
VM - pmap_enter retried due to resource shortage
Thread 0 Crashed:: CrBrowserMain Dispatch queue: com.apple.main-thread
0 <translation info unavailable> 0x10493f43c ???
1 <translation info unavailable> 0x10493ea4c ???
2 libvtkCommon-9.1.1.dylib 0x143fb9cc0 vtkPolyData::BuildLinks(int) + 160
3 libvtkFilters-9.1.1.dylib 0x1407a356e vtkPolyDataNormals::RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 1614
4 libvtkCommon-9.1.1.dylib 0x143d9ab15 vtkExecutive::CallAlgorithm(vtkInformation*, int, vtkInformationVector**, vtkInformationVector*) + 69
5 libvtkCommon-9.1.1.dylib 0x143d9585d vtkDemandDrivenPipeline::ExecuteData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 61
6 libvtkCommon-9.1.1.dylib 0x143d8fc98 vtkCompositeDataPipeline::ExecuteData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 104
7 libvtkCommon-9.1.1.dylib 0x143d9501d vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 1437
8 libvtkCommon-9.1.1.dylib 0x143dd9930 vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 848
9 libvtkCommon-9.1.1.dylib 0x143d90f39 vtkCompositeDataPipeline::ForwardUpstream(vtkInformation*) + 297
10 libvtkCommon-9.1.1.dylib 0x143d94e3d vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 957
11 libvtkCommon-9.1.1.dylib 0x143dd9930 vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) + 848
12 libvtkCommon-9.1.1.dylib 0x143dd9f2b vtkStreamingDemandDrivenPipeline::Update(int, vtkInformationVector*) + 283
13 libqSlicerSegmentationsEditorEffects.dylib 0x18289cc5b qSlicerSegmentEditorScissorsEffectPrivate::updateBrushStencil(qMRMLWidget*) + 203
14 libqSlicerSegmentationsEditorEffects.dylib 0x18289cfb9 qSlicerSegmentEditorScissorsEffectPrivate::paintApply(qMRMLWidget*) + 137
15 libqSlicerSegmentationsEditorEffects.dylib 0x1828a0d30 qSlicerSegmentEditorScissorsEffect::processInteractionEvents(vtkRenderWindowInteractor*, unsigned long, qMRMLWidget*) + 448
16 libqSlicerSegmentationsModuleWidgets.dylib 0x18271302b qMRMLSegmentEditorWidget::processEvents(vtkObject*, unsigned long, void*, void*) + 619
17 libvtkCommon-9.1.1.dylib 0x14457b351 vtkCallbackCommand::Execute(vtkObject*, unsigned long, void*) + 33
18 libvtkCommon-9.1.1.dylib 0x14468f330 vtkSubjectHelper::InvokeEvent(unsigned long, void*, vtkObject*) + 1200
19 libvtkGUISupportQt-9.1.1.dylib 0x1360218cb QVTKInteractorAdapter::ProcessEvent(QEvent*, vtkRenderWindowInteractor*) + 2171
20 libvtkGUISupportQt-9.1.1.dylib 0x136023cae QVTKOpenGLNativeWidget::event(QEvent*) + 30
21 QtWidgets 0x10e9c0a1a QApplicationPrivate::notify_helper(QObject*, QEvent*) + 266
22 QtWidgets 0x10e9c3785 QApplication::notify(QObject*, QEvent*) + 6965
23 libqSlicerBaseQTGUI.dylib 0x10d0aaf20 qSlicerApplication::notify(QObject*, QEvent*) + 16
24 QtCore 0x1114939d4 QCoreApplication::notifyInternal2(QObject*, QEvent*) + 212
25 QtWidgets 0x10e9c1340 QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) + 896
26 QtWidgets 0x10ea1a052 0x10e9b0000 + 434258
27 QtWidgets 0x10ea18719 0x10e9b0000 + 427801
28 QtWidgets 0x10e9c0a1a QApplicationPrivate::notify_helper(QObject*, QEvent*) + 266
29 QtWidgets 0x10e9c1e41 QApplication::notify(QObject*, QEvent*) + 497
30 libqSlicerBaseQTGUI.dylib 0x10d0aaf20 qSlicerApplication::notify(QObject*, QEvent*) + 16
31 QtCore 0x1114939d4 QCoreApplication::notifyInternal2(QObject*, QEvent*) + 212
32 QtGui 0x10fdc11de QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) + 3534
33 QtGui 0x10fda612b QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 219
34 libqcocoa.dylib 0x143123260 0x1430e9000 + 238176
35 libqcocoa.dylib 0x1431239c8 0x1430e9000 + 240072
36 CoreFoundation 0x7ff80289def1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
37 CoreFoundation 0x7ff80289dea0 __CFRunLoopDoSource0 + 157
38 CoreFoundation 0x7ff80289dc6e __CFRunLoopDoSources0 + 212
39 CoreFoundation 0x7ff80289c8c8 __CFRunLoopRun + 943
40 CoreFoundation 0x7ff80289be9f CFRunLoopRunSpecific + 560
41 HIToolbox 0x7ff80c6c3bd6 RunCurrentEventLoopInMode + 292
42 HIToolbox 0x7ff80c6c3806 ReceiveNextEventCommon + 199
43 HIToolbox 0x7ff80c6c3723 _BlockUntilNextEventMatchingListInModeWithFilter + 70
44 AppKit 0x7ff8058f9b37 _DPSNextEvent + 909
45 AppKit 0x7ff8058f89b8 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1219
46 AppKit 0x7ff8058eaff3 -[NSApplication run] + 586
47 libqcocoa.dylib 0x14312262f 0x1430e9000 + 235055
48 QtCore 0x11148fa6f QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 431
49 QtCore 0x111493fe2 QCoreApplication::exec() + 130
50 libqSlicerBaseQTCore.dylib 0x10e1cc1a9 qSlicerCoreApplication::exec() + 9
51 Slicer 0x10432cae3 main + 483
52 dyld 0x20460b310 start + 2432