[dotnet-sdk-11.0.100-preview.4.26210.111] Autodesk Inventor 2026 launch fail with iLogic Activation Error: System.Reflection.TargetException: Object does not match target type.

[Junjun-zhao]

Description

When we launch Autodesk Inventor 2026 with the latest build dotnet-sdk-11.0.100-preview.4.26210.111, an error occurred: System.Reflection.TargetException: Object does not match target type.

Reproduction Steps

Install Steps: (Repro Machine: please get from DevDiv bug)

1. Launch “\appcompatsrv\BugRepro_Share\2931857\Inventor Professional 2026 - (EN)\Setup.exe”.
2. Check in “I agree to the Terms of Use.”
3. Click “Next” button.
4. Click “Next” button.
5. Click “Install” button.
6. Click “Select” button in "Use a network license".
7. Type licence server FQDN from DevDiv bug.
8. Click “Done” button.
9. Close the app.

Environment Configuration:

1. Uninstall all .net runtime or delete C:\Program Files\dotnet.
2. Install dotnet-sdk-11.0.100-preview.4.26210.111.
3. Set environment variables: DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX = 2.

Repro Steps:

1. Launch Autodesk Inventor 2026 from “%ProgramFiles%\Autodesk\Inventor 2026\Bin\Inventor.exe”.

Expected behavior

Launch successfully.

Actual behavior

Launch failed with iLogic Activation Error:
System.Reflection.TargetException: Object does not match target type.

WinDBG "!analyze -v" analyze result for dump file:
FILE_IN_CAB:  Inventor260414072510.dmp

CONTEXT:  (.ecxr)
rax=00007ffd151b1297 rbx=00000027828fdcb0 rcx=0000000000000128
rdx=00007ffd150a6129 rsi=0000000000000001 rdi=00000000e0434352
rip=00007ffda24973fa rsp=00000027828fd950 rbp=0000000000000005
 r8=00007ffd15620258  r9=00007ffcb7f7d0c0 r10=0000000000000018
r11=00007ffd15620168 r12=0000018e7b1505b0 r13=0000000000000000
r14=0000000000000000 r15=00000000ffffff00
iopl=0         nv up ei pl nz na po nc
cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00000202
KERNELBASE!RaiseException+0x8a:
00007ffd`a24973fa 0f1f440000      nop     dword ptr [rax+rax]
Resetting default scope

EXCEPTION_RECORD:  (.exr -1)
ExceptionAddress: 00007ffda24973fa (KERNELBASE!RaiseException+0x000000000000008a)
   ExceptionCode: e0434352 (CLR exception)
  ExceptionFlags: 00000081
NumberParameters: 5
   Parameter[0]: ffffffff80004003
   Parameter[1]: 0000000000000000
   Parameter[2]: 0000000000000000
   Parameter[3]: 0000000000000000
   Parameter[4]: 00007ffd151a0000

PROCESS_NAME:  Inventor.exe

EXCEPTION_CODE_STR:  80004003

FAULTING_THREAD:  ffffffff

STACK_TEXT:  
00000027`828ff890 00007ffc`b799db09 SharedViews!SharedViews.ShowSharedViewsPanelCmd.Finalize+0x69
00000027`828ff8e0 00007ffd`143963cc System_Private_CoreLib!System.GC.RunFinalizers+0x9c


STACK_COMMAND: ** Pseudo Context ** ManagedPseudo ** Value: ffffffff ** ; kb

IP_IN_PAGED_CODE: 
KERNELBASE!RaiseException+8a
00007ffd`a24973fa 0f1f440000      nop     dword ptr [rax+rax]

SYMBOL_NAME:  SharedViews!SharedViews.ShowSharedViewsPanelCmd.Finalize+69

MODULE_NAME: SharedViews

IMAGE_NAME:  SharedViews.dll

FAILURE_BUCKET_ID:  CLR_EXCEPTION_System.NullReferenceException_80004003_SharedViews.dll!SharedViews.ShowSharedViewsPanelCmd.Finalize

OS_VERSION:  10.0.26100.1

BUILDLAB_STR:  ge_release

OSPLATFORM_TYPE:  x64

OSNAME:  Windows 10

IMAGE_VERSION:  30.0.17500.0

FAILURE_ID_HASH:  {90c87500-971d-a36d-054d-38097ab07253}

Followup:     MachineOwner
---------

CLRMAReleaseInstance

Regression?

Yes

Verify Scenarios:
1). Windows 11 24H2 AMD64 + dotnet-sdk-11.0.100-preview.3.26207.106: Pass
2). Windows 11 24H2 AMD64 + dotnet-sdk-11.0.100-preview.4.26210.111: Fail

Known Workarounds

No response

Configuration

Application Name: Autodesk Inventor 2026
OS: Windows 11 24H2
CPU: X64
.NET Build Number: dotnet-sdk-11.0.100-preview.4.26210.111
App Installer or Repro machine checking at: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/2931857

dotnet --info

.NET SDK:
 Version:           11.0.100-preview.4.26210.111
 Commit:            5bed4499b0
 Workload version:  11.0.100-manifests.a54d0309
 MSBuild version:   18.6.0-preview-26210-111+5bed4499b

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.26200
 OS Platform: Windows
 RID:         win-x64
 Base Path:   C:\Program Files\dotnet\sdk\11.0.100-preview.4.26210.111\

Host:
  Version:      11.0.0-preview.4.26210.111
  Architecture: x64
  Commit:       5bed4499b0

.NET SDKs installed:
  11.0.100-preview.4.26210.111 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 11.0.0-preview.4.26210.111 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 11.0.0-preview.4.26210.111 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 11.0.0-preview.4.26210.111 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other information

@dotnet-actwx-bot @dotnet/compat

[janvorli]

cc @jkotas, @am11 - from the stack trace above, it seems that an exception in a finalizer is being reported as unhandled and tears down the process. I wonder if the #126582 could have introduced this issue.

[janvorli]

I'll take a look at the repro machine to get more details.

[am11]

I ran an AI model on it, it thinks:

What might actually be going on
A few possibilities:

The COM TargetException is the actual regression, not the finalizer crash. Something else between preview.3 and preview.4 broke InvokeDispMethod for this specific COM interop pattern. The finalizer crash in the dump might be a secondary effect or even a pre-existing crash that's unrelated.

A different PR between preview.3 and preview.4 caused the regression — maybe something in COM interop, IDispatch marshaling, or RuntimeType.InvokeMember.

There IS a subtle difference I'm not seeing in how the UCO reverse P/Invoke frame interacts with the exception dispatch machinery — perhaps in the first pass (filter evaluation) or in how the TSNC_SkipManagedPersonalityRoutine flag affects subsequent dispatch. But my analysis of the code shows the same logical flow.

[janvorli]

@jkotas I am unable to connect to the repro machine or to the share with the installer, can you please try that yourself?