Encountering several times of the same crash "Access violation detected at" after using 2024a, 2024b and 2026a, wish somebody could please help me.

Here is the detailed crash log:

MATLAB Log File: C:\Users\hmlmi\AppData\Local\Temp\matlab_crash_dump.24296-1

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MATLAB Log File

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Access violation detected at 2026-05-07 00:05:49 +0800

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Configuration:

Crash Decoding : Disabled - No sandbox or build area path

Crash Mode : continue (default)

Default Encoding : UTF-8

Deployed : false

Graphics Driver : Uninitialized hardware

Graphics card 1 : Shanghai Best Oray Information Technology Co., Ltd. ( 0x0 ) OrayIddDriver Device Version 17.50.19.949 (2025-6-11)

Graphics card 2 : NVIDIA ( 0x10de ) NVIDIA GeForce RTX 5060 Ti Version 32.0.15.9636 (2026-4-23)

MATLAB Architecture : win64

MATLAB Entitlement ID : 13838355

MATLAB Root : D:\Programs\MATLAB\R2026a

MATLAB Version : 26.1.0.3203278 (R2026a)

OpenGL : hardware

Operating System : Microsoft Windows 11 家庭版 中文版

Process ID : 24296

Processor ID : x86 Family 6 Model 183 Stepping 1, GenuineIntel

Session Key : 85v6c3k4ai0sdxosp1j7kk0wn

Window System : Version 10.0 (Build 26200)

Fault Count: 1

Abnormal termination:

Access violation

Current Thread: 'MCR 0 interpreter thread' id 27984

Register State (from fault):

RAX = 00000000c4834890 RBX = 00007ff8fba8fc3a

RCX = 000001bee16b6620 RDX = 000001bc47befc80

RSP = 0000001e68df9080 RBP = 000001bebd6708e0

RSI = 0000001e68df91c0 RDI = 000001bc47befc80

R8 = 000001bebd65d440 R9 = 000001bc5b8f9600

R10 = 0000000000000030 R11 = 0000001e68df91e0

R12 = 0000000000000000 R13 = 0000000000000050

R14 = 000001bf12f2bd60 R15 = 0000000000000000

RIP = 00007ff8fb9e01a3 EFL = 00010202

CS = 0033 FS = 0053 GS = 002b

Stack Trace (from fault):

[ 0] 0x00007ff8fb9e01a3 D:\Programs\MATLAB\R2026a\bin\win64\libmx.dll+00328099 matrix::detail::do_shared_copy+00000131

[ 1] 0x00007ff8fbc53ab1 D:\Programs\MATLAB\R2026a\bin\win64\libmx.dll+02898609 matrix::detail::noninlined::mx_array_api::mxGetRootRecordForArray+00000241

[ 2] 0x00007ff8fb9cc145 D:\Programs\MATLAB\R2026a\bin\win64\libmx.dll+00246085 matrix::detail::noninlined::mx_array_api::mxReplaceCell+00000373

[ 3] 0x00007ff8a4bd3c9c D:\Programs\MATLAB\R2026a\bin\win64\libmwlxeindexing.dll+01326236 MathWorks::lxe::set_lbrace_ilplace_to_ilplace+00001916

[ 4] 0x00007ff8a4bcaea0 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxeindexing.dll+01289888 MathWorks::lxe::assign_brace_pointer_cell_scalar_subscripts_no_repartition+00000176

[ 5] 0x00007ff8a1d604a5 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+05702821 MathWorks::lxe::XvalueFactory::XvalueDeleter::XvalueDeleter+00278421

[ 6] 0x00007ff8a1d80cb1 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+05835953 MathWorks::lxe::XvalueFactory::XvalueDeleter::XvalueDeleter+00411553

[ 7] 0x00007ff8a1c0eab7 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+04319927 MathWorks::lxe::GetTag+00007591

[ 8] 0x00007ff8a1bf71b2 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+04223410 MathWorks::lxe::SetEngineImplUnlinkFlagForAllCallsOnStack+00046034

[ 9] 0x00007ff8a1bfb805 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+04241413 MathWorks::lxe::SetEngineImplUnlinkFlagForAllCallsOnStack+00064037

[ 10] 0x00007ff8aabb1e36 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+03546678 FeatureTestObservableWorkspace+00367686

[ 11] 0x00007ff8aa916789 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+00812937 mwboost::serialization::singleton_module::unlock+00747289

[ 12] 0x00007ff8aa915dcb D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+00810443 mwboost::serialization::singleton_module::unlock+00744795

[ 13] 0x00007ff8aa91a862 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+00829538 mwboost::serialization::singleton_module::unlock+00763890

[ 14] 0x00007ff8cf581fd1 D:\Programs\MATLAB\R2026a\bin\win64\m_dispatcher.dll+01253329 Mfh_error::lookup+00012865

[ 15] 0x00007ff8cf582e2d D:\Programs\MATLAB\R2026a\bin\win64\m_dispatcher.dll+01257005 Mfh_file::dispatch+00000045

[ 16] 0x00007ff8aa926b7d D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+00879485 mwboost::serialization::singleton_module::unlock+00813837

[ 17] 0x00007ff8aa943964 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+00997732 mwboost::serialization::singleton_module::unlock+00932084

[ 18] 0x00007ff8a1e54966 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+06703462 MathWorks::lxe::ObservableXvaluePtr::~ObservableXvaluePtr+00006470

[ 19] 0x00007ff8a1e56245 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+06709829 MathWorks::lxe::ObservableXvaluePtr::~ObservableXvaluePtr+00012837

[ 20] 0x00007ff8a1d60458 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+05702744 MathWorks::lxe::XvalueFactory::XvalueDeleter::XvalueDeleter+00278344

[ 21] 0x00007ff8a1d80129 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+05833001 MathWorks::lxe::XvalueFactory::XvalueDeleter::XvalueDeleter+00408601

[ 22] 0x00007ff8a1af62a5 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03170981 MathWorks::lxe::LXEConstants::IsIfElse+00549989

[ 23] 0x00007ff8a1afa3a2 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03187618 MathWorks::lxe::LXEConstants::IsY+00011666

[ 24] 0x00007ff8a1af7d71 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03177841 MathWorks::lxe::LXEConstants::IsY+00001889

[ 25] 0x00007ff8a1afb455 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03191893 MathWorks::lxe::LXEConstants::IsY+00015941

[ 26] 0x00007ff8a1afb703 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03192579 MathWorks::lxe::LXEConstants::IsY+00016627

[ 27] 0x00007ff8a1afb06e D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03190894 MathWorks::lxe::LXEConstants::IsY+00014942

[ 28] 0x00007ff8a1af7456 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+03175510 MathWorks::lxe::LxeTypes::GetTypeXvalueOf+00000262

[ 29] 0x00007ff8a1bf7c3f D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+04226111 MathWorks::lxe::SetEngineImplUnlinkFlagForAllCallsOnStack+00048735

[ 30] 0x00007ff8a1bfb805 D:\Programs\MATLAB\R2026a\bin\win64\m_lxe.dll+04241413 MathWorks::lxe::SetEngineImplUnlinkFlagForAllCallsOnStack+00064037

[ 31] 0x00007ff8aabb1e36 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+03546678 FeatureTestObservableWorkspace+00367686

[ 32] 0x00007ff8aa9ea3dd D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+01680349 mwboost::archive::detail::pointer_oserializer<mwboost::archive::xml_oarchive,MathWorks::lxe::PreLineExecutionEvent>::save_object_ptr+00198077

[ 33] 0x00007ff8aa9ebd0b D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+01686795 mwboost::archive::detail::pointer_oserializer<mwboost::archive::xml_oarchive,MathWorks::lxe::PreLineExecutionEvent>::save_object_ptr+00204523

[ 34] 0x00007ff8aab4b0d7 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+03125463 MathWorks::lxe::terminateFcn+00135655

[ 35] 0x00007ff8aab4ef97 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+03141527 MathWorks::lxe::terminateFcn+00151719

[ 36] 0x00007ff8aab4df34 D:\Programs\MATLAB\R2026a\bin\win64\libmwlxemainservices.dll+03137332 MathWorks::lxe::terminateFcn+00147524

[ 37] 0x00007ff8cfffe53c D:\Programs\MATLAB\R2026a\bin\win64\m_interpreter.dll+00648508 inEvalCmdWithLocalReturnInDesiredWSAndPublishEvents+00000076

[ 38] 0x00007ff8cd188025 D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00819237 iqm::InternalEvalPlugin::inEvalCmdWithLocalReturn+00000101

[ 39] 0x00007ff8cd1879cc D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00817612 iqm::InternalEvalPlugin::execute+00000236

[ 40] 0x00007ff8cd166069 D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00680041 iqm::Iqm::setupIqmFcnPtrs+00117321

[ 41] 0x00007ff8cd130a17 D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00461335 iqm::Iqm::create+00008727

[ 42] 0x00007ff8aa75ade1 D:\Programs\MATLAB\R2026a\bin\win64\libmwbridge.dll+00110049 ioReadLine+00000337

[ 43] 0x00007ff8aa75ac48 D:\Programs\MATLAB\R2026a\bin\win64\libmwbridge.dll+00109640 ioReadLine+00000168

[ 44] 0x00007ff8aa78c0d0 D:\Programs\MATLAB\R2026a\bin\win64\libmwbridge.dll+00311504 mnGetCommandLineBuffer+00000288

[ 45] 0x00007ff8aa78c69e D:\Programs\MATLAB\R2026a\bin\win64\libmwbridge.dll+00312990 mnParser+00000782

[ 46] 0x00007ff8aafd692d D:\Programs\MATLAB\R2026a\bin\win64\mcr.dll+00551213 mcr::runtime::initializeIqm+00002669

[ 47] 0x00007ff8aaf6a9be D:\Programs\MATLAB\R2026a\bin\win64\mcr.dll+00108990 mcrFunctionSignature::set_signature+00062382

[ 48] 0x00007ff8aaf81fa2 D:\Programs\MATLAB\R2026a\bin\win64\mcr.dll+00204706 mwboost::archive::codecvt_null<wchar_t>::`default constructor closure'+00014706

[ 49] 0x00007ff8cd194f0a D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00872202 iqm::PackagedTaskPlugin::execute+00000074

[ 50] 0x00007ff8cd166069 D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00680041 iqm::Iqm::setupIqmFcnPtrs+00117321

[ 51] 0x00007ff8cd1318da D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00465114 iqm::Iqm::create+00012506

[ 52] 0x00007ff8cd131e46 D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00466502 iqm::Iqm::create+00013894

[ 53] 0x00007ff8cd1311cd D:\Programs\MATLAB\R2026a\bin\win64\iqm.dll+00463309 iqm::Iqm::create+00010701

[ 54] 0x00007ff8aaf9c75c D:\Programs\MATLAB\R2026a\bin\win64\mcr.dll+00313180 mcrInstantiationError::operator=+00010908

[ 55] 0x00007ff8aaf9d3a6 D:\Programs\MATLAB\R2026a\bin\win64\mcr.dll+00316326 mcrInstantiationError::operator=+00014054

[ 56] 0x00007ff8aaf9a731 D:\Programs\MATLAB\R2026a\bin\win64\mcr.dll+00304945 mcrInstantiationError::operator=+00002673

[ 57] 0x00007ff8fce88fba D:\Programs\MATLAB\R2026a\bin\win64\mwboost_thread-vc143-mt-x64-1_81.dll+00036794 mwboost::detail::win32::handle_manager::swap+00000650

[ 58] 0x00007ff9826637b0 C:\WINDOWS\System32\ucrtbase.dll+00014256 wcsrchr+00000336

[ 59] 0x00007ff983f0e957 C:\WINDOWS\System32\KERNEL32.DLL+00190807 BaseThreadInitThunk+00000023

[ 60] 0x00007ff98556427c C:\WINDOWS\SYSTEM32\ntdll.dll+00017020 RtlUserThreadStart+00000044

Answer 1

[Andreas Goser]

Please follow the following steps: Once you have submitted the crash dump to MathWorks (there should be a UI poping up about that), then you will get an automated email a short while after. Often, this will point to a specifc webpage with a likely solution. Or it will provide information it is an unknown reason and a description how to contact Technical Support if you need it (replying with information)