Anki keeps crashing at the same card

Anki keeps crashing at the same card. Thread 9 keeps crashing at AppKit.

Similar to this problem: https://stackoverflow.com/questions/53916139/terminating-app-due-to-uncaught-exception-when-i-run-my-cpp-file

Thread 9 Crashed:
0 libsystem_kernel.dylib 0x00007fff69de533a __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff69ea1e60 pthread_kill + 430
2 libsystem_c.dylib 0x00007fff69cfc93e raise + 26
3 libsystem_platform.dylib 0x00007fff69e965fd _sigtramp + 29
4 ??? 0x00007fdb00000400 0 + 140578574566400
5 libsystem_c.dylib 0x00007fff69d6c808 abort + 120
6 libc++abi.dylib 0x00007fff66fcb458 abort_message + 231
7 libc++abi.dylib 0x00007fff66fbc8bf demangling_terminate_handler() + 262
8 libobjc.A.dylib 0x00007fff68af75a9 _objc_terminate() + 96
9 libc++abi.dylib 0x00007fff66fca887 std::__terminate(void ()()) + 8
10 libc++abi.dylib 0x00007fff66fcd1a2 __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception
) + 27
11 libc++abi.dylib 0x00007fff66fcd169 __cxa_throw + 113
12 libobjc.A.dylib 0x00007fff68af56ed objc_exception_throw + 350
13 com.apple.CoreFoundation 0x00007fff2fe7034c -[NSException raise] + 9
14 com.apple.AppKit 0x00007fff2d06a5ec -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 310
15 com.apple.AppKit 0x00007fff2d052052 -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1416
16 com.apple.AppKit 0x00007fff2d232db5 -[NSPanel _initContent:styleMask:backing:defer:contentView:] + 50
17 com.apple.AppKit 0x00007fff2d051ac3 -[NSWindow initWithContentRect:styleMask:backing:defer:] + 42
18 com.apple.AppKit 0x00007fff2d232d6a -[NSPanel initWithContentRect:styleMask:backing:defer:] + 64
19 com.apple.AppKit 0x00007fff2d38aa28 -[NSWindow initWithContentRect:styleMask:backing:defer:screen:] + 52
20 libqcocoa.dylib 0x00000001121e2835 -[QNSPanel initWithContentRect:styleMask:backing:defer:screen:platformWindow:] + 197
21 libqcocoa.dylib 0x00000001121ceeac QCocoaWindow::createNSWindow(bool) + 1324
22 libqcocoa.dylib 0x00000001121c8b62 QCocoaWindow::recreateWindowIfNeeded() + 1266
23 libqcocoa.dylib 0x00000001121c85ee QCocoaWindow::initialize() + 318
24 QtGui 0x000000010e535886 QWindowPrivate::create(bool, unsigned long long) + 134
25 QtWidgets 0x000000010f11f211 QWidgetPrivate::create() + 1185
26 QtWidgets 0x000000010f11dee4 QWidget::create(unsigned long long, bool, bool) + 324
27 QtWidgets 0x000000010f1313bd QWidgetPrivate::setVisible(bool) + 189
28 QtWidgets.abi3.so 0x000000010ec19bbe sipQLabel::setVisible(bool) + 110
29 QtWidgets.abi3.so 0x000000010edbf31b meth_QWidget_show(_object*, _object*) + 75
30 Python 0x000000010a327bc2 cfunction_call_varargs + 290
31 Python 0x000000010a327585 _PyObject_MakeTpCall + 373
32 Python 0x000000010a3f4835 call_function + 533
33 Python 0x000000010a3f15ed _PyEval_EvalFrameDefault + 25677
34 Python 0x000000010a3f5624 _PyEval_EvalCodeWithName + 2804
35 Python 0x000000010a32806e _PyFunction_Vectorcall + 270
36 Python 0x000000010a3f47dc call_function + 444
37 Python 0x000000010a3f167a _PyEval_EvalFrameDefault + 25818
38 Python 0x000000010a327ed0 function_code_fastcall + 128
39 Python 0x000000010a3f47dc call_function + 444
40 Python 0x000000010a3f167a _PyEval_EvalFrameDefault + 25818
41 Python 0x000000010a3f5624 _PyEval_EvalCodeWithName + 2804
42 Python 0x000000010a32806e _PyFunction_Vectorcall + 270
43 Python 0x000000010a3f47dc call_function + 444
44 Python 0x000000010a3f167a _PyEval_EvalFrameDefault + 25818
45 Python 0x000000010a327ed0 function_code_fastcall + 128
46 Python 0x000000010a3273d7 _PyObject_FastCallDict + 247
47 Python 0x000000010a3289df _PyObject_Call_Prepend + 143
48 Python 0x000000010a37cbb6 slot_tp_call + 150
49 Python 0x000000010a327585 _PyObject_MakeTpCall + 373
50 Python 0x000000010a3f4835 call_function + 533
51 Python 0x000000010a3f15ed _PyEval_EvalFrameDefault + 25677
52 Python 0x000000010a327ed0 function_code_fastcall + 128
53 Python 0x000000010a3f47dc call_function + 444
54 Python 0x000000010a3f15c9 _PyEval_EvalFrameDefault + 25641
55 Python 0x000000010a327ed0 function_code_fastcall + 128
56 Python 0x000000010a3f47dc call_function + 444
57 Python 0x000000010a3f15c9 _PyEval_EvalFrameDefault + 25641
58 Python 0x000000010a327ed0 function_code_fastcall + 128
59 Python 0x000000010a3f47dc call_function + 444
60 Python 0x000000010a3f15c9 _PyEval_EvalFrameDefault + 25641
61 Python 0x000000010a327ed0 function_code_fastcall + 128
62 Python 0x000000010a32a59a method_vectorcall + 170
63 Python 0x000000010a3f47dc call_function + 444
64 Python 0x000000010a3f15ed _PyEval_EvalFrameDefault + 25677
65 Python 0x000000010a327ed0 function_code_fastcall + 128
66 Python 0x000000010a32a59a method_vectorcall + 170
67 Python 0x000000010a3f47dc call_function + 444
68 Python 0x000000010a3f167a _PyEval_EvalFrameDefault + 25818
69 Python 0x000000010a327ed0 function_code_fastcall + 128
70 Python 0x000000010a3f47dc call_function + 444
71 Python 0x000000010a3f15c9 _PyEval_EvalFrameDefault + 25641
72 Python 0x000000010a327ed0 function_code_fastcall + 128
73 Python 0x000000010a32a5db method_vectorcall + 235
74 Python 0x000000010a3278ad PyVectorcall_Call + 109
75 Python 0x000000010a3f1af8 _PyEval_EvalFrameDefault + 26968
76 Python 0x000000010a327ed0 function_code_fastcall + 128
77 Python 0x000000010a3f47dc call_function + 444
78 Python 0x000000010a3f15c9 _PyEval_EvalFrameDefault + 25641
79 Python 0x000000010a327ed0 function_code_fastcall + 128
80 Python 0x000000010a3f47dc call_function + 444
81 Python 0x000000010a3f15c9 _PyEval_EvalFrameDefault + 25641
82 Python 0x000000010a327ed0 function_code_fastcall + 128
83 Python 0x000000010a32a5db method_vectorcall + 235
84 Python 0x000000010a3278ad PyVectorcall_Call + 109
85 Python 0x000000010a4939fa t_bootstrap + 74
86 Python 0x000000010a4472c9 pythread_wrapper + 25
87 libsystem_pthread.dylib 0x00007fff69ea2109 _pthread_start + 148
88 libsystem_pthread.dylib 0x00007fff69e9db8b thread_start + 15

I can’t reproduce this. Have you ruled out add-ons? https://faqs.ankiweb.net/when-problems-occur.html