Why is the MATLAB R2024b and R2025a Prerelease crashing with "libmwagen​tspflegacy​servicepub​lisher.dll​" in the stack trace?

I am experiencing a sporadic crash in MATLAB. MATLAB crashes shortly after opening while idle, or when attempting to open Simulink, or attaching the Visual Studio Debugger.

Below is the crash log that I receive:

Crash Log:
--------------------------------------------------------------------------------
                 abort() detected at 2025-03-24 11:42:42 +0100
--------------------------------------------------------------------------------

Configuration:
  Crash Decoding           : Disabled - No sandbox or build area path
  Crash Mode               : continue (default)
  Default Encoding         : UTF-8
  Deployed                 : false
  Graphics Driver          : Intel Intel(R) UHD Graphics Version 4.5.0 - Build 32.0.101.5763
  Graphics card 1          : Intel Corporation ( 0x8086 ) Intel(R) UHD Graphics Version 32.0.101.5763 (2024-7-8)
  Java Version             : Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
  MATLAB Architecture      : win64
  MATLAB Entitlement ID    : 867723
  MATLAB Root              : C:\Program Files\MATLAB\R2024b
  MATLAB Version           : 24.2.0.2833386 (R2024b) Update 4
  OpenGL                   : hardware
  Operating System         : Microsoft Windows 11 Enterprise
  Process ID               : 21936
  Processor ID             : x86 Family 6 Model 154 Stepping 4, GenuineIntel
  Session Key              : 88a26b1f-0e0a-4940-a790-8c5fc6055ac8
  Window System            : Version 10.0 (Build 22631)

Fault Count: 1


Abnormal termination:
abort()

Current Thread: '' id 36520

Register State (captured):
  RAX = 00007ffdfa3b82c8  RBX = 00007ffdfa3b82c8
  RCX = 000000ca2c2f9e20  RDX = 00007ffdfa361920
  RSP = 000000ca2c2f9d60  RBP = 000000ca2c2faaf0
  RSI = 0000000000000000  RDI = 00007ffdfa3b82c8
 
   R8 = 0000000000000003   R9 = 000000ca2c2f9cd8
  R10 = 0000000000000014  R11 = 0000000000000000
  R12 = 000000ca2c2fa9f8  R13 = 0000000000000000
  R14 = 00007ffdfa3a81f8  R15 = 000000ca2c2fa430
 
  RIP = 00007ffdfa2a21ca  EFL = 00000206
 
   CS = 0033   FS = 0053   GS = 002b

Stack Trace (captured):
[  0] 0x00007ffdfa29b563 C:\Program Files\MATLAB\R2024b\bin\win64\libmwfl.dll+00046435 foundation::core::diag::thread_context::unspecified_bool+00000051
[  1] 0x00007ffdfa299998 C:\Program Files\MATLAB\R2024b\bin\win64\libmwfl.dll+00039320 foundation::core::diag::stacktrace_base::capture+00000024
[  2] 0x00007ffdfa29de0f C:\Program Files\MATLAB\R2024b\bin\win64\libmwfl.dll+00056847 foundation::core::diag::symbols::getSymbolAddress+00009903
[  3] 0x00007ffdfa2a0cb7 C:\Program Files\MATLAB\R2024b\bin\win64\libmwfl.dll+00068791 foundation::core::diag::is_terminate_message_enabled+00000519
[  4] 0x00007ffd97ba5778   C:\Program Files\MATLAB\R2024b\bin\win64\mcr.dll+00808824 mnFullExitFcn+00042264
[  5] 0x00007ffd97ba4eed   C:\Program Files\MATLAB\R2024b\bin\win64\mcr.dll+00806637 mnFullExitFcn+00040077
[  6] 0x00007ffd97ba09b5   C:\Program Files\MATLAB\R2024b\bin\win64\mcr.dll+00788917 mnFullExitFcn+00022357
[  7] 0x00007ffd97ba2b49   C:\Program Files\MATLAB\R2024b\bin\win64\mcr.dll+00797513 mnFullExitFcn+00030953
[  8] 0x00007ffe1ba7e6d5                   C:\windows\System32\ucrtbase.dll+00517845 raise+00000485
[  9] 0x00007ffe1ba7f6e1                   C:\windows\System32\ucrtbase.dll+00521953 abort+00000049
[ 10] 0x00007ffe15643f01 C:\Program Files\MATLAB\R2024b\bin\win64\VCRUNTIME140_1.dll+00016129
[ 11] 0x00007ffe15642631 C:\Program Files\MATLAB\R2024b\bin\win64\VCRUNTIME140_1.dll+00009777
[ 12] 0x00007ffe1def4cd6                      C:\windows\SYSTEM32\ntdll.dll+00675030 RtlCaptureContext2+00001190
[ 13] 0x00007ffd5af7818d C:\Program Files\MATLAB\R2024b\bin\win64\spf\servicepublishers\agent\spf\legacyservicepublisher\libmwagentspflegacyservicepublisher.dll+00557453 agent::spf::serialisation::GenericPayloadWrapper::get+00542429
[ 14] 0x00007ffd5af88273 C:\Program Files\MATLAB\R2024b\bin\win64\spf\servicepublishers\agent\spf\legacyservicepublisher\libmwagentspflegacyservicepublisher.dll+00623219 agent::spf::serialisation::GenericPayloadWrapper::get+00608195
[ 15] 0x00007ffd5af35821 C:\Program Files\MATLAB\R2024b\bin\win64\spf\servicepublishers\agent\spf\legacyservicepublisher\libmwagentspflegacyservicepublisher.dll+00284705 agent::spf::serialisation::GenericPayloadWrapper::get+00269681
[ 16] 0x00007ffe1ba29333                   C:\windows\System32\ucrtbase.dll+00168755 recalloc+00000163
[ 17] 0x00007ffe1cde259d                   C:\windows\System32\KERNEL32.DLL+00075165 BaseThreadInitThunk+00000029
[ 18] 0x00007ffe1deaaf38                      C:\windows\SYSTEM32\ntdll.dll+00372536 RtlUserThreadStart+00000040


Program State:

Most Recent Tool Interaction:
Editor 1: tools idle, no most recently active toolEditor 2: tools idle, class Simulink::KeyboardSelectionTool is most recently active tool since Mon Mar 24 08:11:41 2025
------=_Part_1977_08_16_1742813030816000000--

Answer 1

[MathWorks Support Team]

This is a known issue that is present in MATLAB R2024b Update 4, as well as R2025a Prerelease Updates 2 and 3. It has been fixed in MATLAB R2024b Update 5 and R2025a Prerelease Update 4. Please upgrade MATLAB to its latest versions resolve the issue.

Alternatively, you can ensure that the MathWorks Service Host version is 2025.2.2.1, which features a patch to fix this bug. You can install it by following How do I uninstall and reinstall the MathWorks Service Host?