[SU5] | SDK 1.6.4 | 3DS Max multi-exporter fails to install properly

NikDeLion · February 15, 2026, 2:02am

Version: 1.7.6.0

Frequency: Consistently

Severity: High
(Low - quality of life, workflow optimization, rare enough to not impact production, etc…
High - critical but workarounds are available, important feature not working as expected, frequent enough to impact production
Blocker - prevents from working on the project, prevents from releasing the product)

Bug description: 3DS Max (2024 and 2026) | After launching 3DS Max, a window pops up notifying me of missing plugin files, although the MSFS2024 button and all the tools are present on the toolbar. After manually installing the plugin, an error appears when attempting to compile the model using the exporter: ERROR: The system cannot find the file specified. |

NikDeLion · February 16, 2026, 10:12pm

Traceback (most recent call last):
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\multiExporter.py”, line 231, in
lambda: self._clickedExport(
^^^^^^^^^^^^^^^^^^^^
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\multiExporter.py”, line 1618, in _clickedExport
self.export(exportOption)
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\multiExporter.py”, line 1834, in export
exportedGltfs = self.exportLODs(exportOption)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\multiExporter.py”, line 1767, in exportLODs
self.generateLODsXMLs(exportModelNamesForXmlExport)
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\multiExporter.py”, line 1667, in generateLODsXMLs
self.generateXmlFromListNames(modelNames)
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\multiExporter.py”, line 1932, in generateXmlFromListNames
exporter.createLODMetadata(metadataPath, objects)
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\exporter.py”, line 650, in createLODMetadata
xmlLog = writeXML(xmlPath, modelInfo)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024\MultiExporter2024\exporter.py”, line 683, in writeXML
sdkperforce.p4_edit(xmlPath)
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\maxsdk_2024\perforce.py”, line 42, in p4_edit
result = subprocess.run(
^^^^^^^^^^^^^^^
File “E:\Autodesk\3ds Max 2026\Python\Lib\subprocess.py”, line 548, in run
with Popen(*popenargs, **kwargs) as process:
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “E:\Autodesk\3ds Max 2026\Python\Lib\subprocess.py”, line 1026, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File “E:\Autodesk\3ds Max 2026\Python\Lib\subprocess.py”, line 1538, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [WinError 2] The system cannot find the file specified

FlyingRaccoon · February 17, 2026, 9:02am

I moved your post here since you created a dedicated topic and this is unrelated to the Blender install issue.

Regards,
Sylvain

SimbolFSReborn · February 17, 2026, 12:13pm

Any eta on this fix? I want to avoid to update my SDK until we know this works.. too many projects going on that would be affected if my 3DSMax stops working

R.

Yasmine · February 17, 2026, 1:40pm

Hello,

Can you try to reinstall the SDK with the installer and send us the error you get in the window that pops up ?

You should not try to install the plugins manually.

Thank you

NikDeLion · February 18, 2026, 12:36pm

After installation, I immediately go to 3ds Max. Аfter a few seconds a window appears at the top stating that 4 files are missing in the folder: Component “c:\msfs 2024 sdk\tools\3dsmax\msfs2024package\src\plugins\glTF_Exporter\2026\MSFS2024_Max2Babylon.dll” specified in package “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\packages\SDK\PackageContents.xml” ({bef4b961-c3dc-4197-b663-ed8dde1197ee}) doesn’t exist.
Component “c:\msfs 2024 sdk\tools\3dsmax\msfs2024package\src\plugins\glTF_Exporter\2026\GDImageLibrary.dll” specified in package “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\packages\SDK\PackageContents.xml” ({bef4b961-c3dc-4197-b663-ed8dde1197ee}) doesn’t exist.
Component “c:\msfs 2024 sdk\tools\3dsmax\msfs2024package\src\plugins\glTF_Exporter\2026\TargaImage.dll” specified in package “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\packages\SDK\PackageContents.xml” ({bef4b961-c3dc-4197-b663-ed8dde1197ee}) doesn’t exist.
Component “c:\msfs 2024 sdk\tools\3dsmax\msfs2024package\src\plugins\glTF_Exporter\2026\TQ.Texture.dll” specified in package “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\packages\SDK\PackageContents.xml” ({bef4b961-c3dc-4197-b663-ed8dde1197ee}) doesn’t exist.
I completely uninstalled the previous version of SDK (1.5.7) and tested the plugin on both my PC and laptop. Same problem. If I run the version of the plugin from SU5 beta on 3DS Max 2024, then there are no errors like in the 2026.3 version of max, but in both versions of Max it is impossible to export the model (“the system cannot find the file specified”).

NikDeLion · February 18, 2026, 12:39pm

Also, if these 4 files are not installed in the /bin/assemblies/ path, then the MSFS Material does not work and gives an error

Yasmine · February 20, 2026, 9:47am

This will be fixed in next SDK, it’s an error generated by 3dsMax API concerning 3dsmax 2026. Its should not be a blocker for your exports in 3dsmax 2024.

Thank you

NikDeLion · February 21, 2026, 12:31am

Thanks. I’ll wait for the update, but for now I’ll just use the previous SDK for exporting models.

_rk · February 21, 2026, 10:29pm

Hello, I also have this problem after installing SDK 1.6.4 on 3ds Max 2024. I don’t have 3ds Max 2026 installed. Oddly, I saw the 3 checkbox dialog ( Export models as glTF, Generate model XML and Generate TextureLib") on one occasion, but normally and currently only see the Generate TextureLib checkbox. I have tried repairing the install.

Al13X7895 · February 23, 2026, 2:40pm

@Yasmine Hi support team,

We are experiencing the same issue with the 3ds Max exporter in 3ds Max 2024:

[EXPORT][ERROR] Cube_LOD00.gltf: [WinError 2] The system cannot find the file specified

What we have already tried (no success):

Fully uninstalling and reinstalling the SDK from scratch, including removing the previous SDK installation folders and profiles.
Repeating installation with Administrator privileges and antivirus temporarily disabled.
Reproducing on a minimal test scene (single cube) and exporting to a simple local folder (not related to Git/OneDrive), still the same error.
Verifying folder/file existence and write permissions for the export destination and temporary folders.
Checking 3ds Max settings and environment variables related to SDK paths, and validating that the SDK installation folders are present.

Even with a clean scene and a clean export path, the exporter fails and no .gltf is produced.

Could you please confirm:

Whether this is a known regression in SDK 1.6.4 affecting 3ds Max 2024,
If there is any official workaround (patch/hotfix, updated exporter package, required dependencies, or recommended installation steps),
What logs you would like us to provide to help diagnose this (plugin logs, exporter logs, 3ds Max logs, etc.).

This is an urgent issue for us because it blocks production work for our team. Any guidance or fix would be greatly appreciated.

LioC18 · February 23, 2026, 7:21pm

Hi

Same issue here with 3dsMax 2026 and SDK 1.6.4.

Thank you

Al13X7895 · February 24, 2026, 3:13pm

The isse with multiexporter 3Dmax 2024 / 25 / 26
FileNotFoundError: [WinError 2] The system cannot find the file specified

The problem is that the SDK tries to call the Perforce CLI (p4.exe) during XML generation, even if Perforce is not installed on your system. Since p4.exe is not available in PATH, Python raises WinError 2 and the export process stops.

Quick workaround

Edit the following file:
MSFS2024Package\scripts\maxsdk_2024\perforce.py

Replace this part:

def p4_edit(file_path, changelist_name=“default”, p4_output=None):
result = subprocess.run(
[“p4”, “fstat”, file_path],

By this:

def p4_edit(file_path, changelist_name=“default”, p4_output=None):
if not use_p4():
return True
result = subprocess.run(
[“p4”, “fstat”, file_path],

This prevents the SDK from attempting to call p4.exe when Perforce is not installed.

Restart 3ds Max after saving the file.

NikDeLion · February 25, 2026, 12:21am

Not working for 3DS Max 2026 (the lines were changed manually, not copy-pasted)

NikDeLion · February 25, 2026, 12:22am

Traceback (most recent call last):
File “E:\Autodesk\3ds Max 2026\Python\Lib\importlib_init_.py”, line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “”, line 1204, in _gcd_import
File “”, line 1176, in _find_and_load
File “”, line 1147, in _find_and_load_unlocked
File “”, line 690, in _load_unlocked
File “”, line 940, in exec_module
File “”, line 241, in call_with_frames_removed
File "C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\msfs_max_py_2024_init.py", line 9, in
from maxsdk_2024 import (
File “”, line 8, in find
File “C:\MSFS 2024 SDK\Tools\3dsMax\MSFS2024Package\scripts\maxsdk_2024\perforce.py”, line 43
return True
^
IndentationError: expected an indented block after ‘if’ statement on line 42

Yasmine · February 25, 2026, 9:40am

Hello,

The fix has been pushed, you’ll get it with the next SDK 1.6.5.

Thank you for your report !

Al13X7895 · February 25, 2026, 4:30pm

Thank you for addressing the exporter issue in the upcoming update.

I would like to inform you that there are still additional problems with the 3ds Max 2024 tools.

For example, several items in the right-click MSFS2024 menu are non-functional, including the Animation Groups editor and related dropdown options.

A clean SDK reinstall does not resolve the issue.

Could you please verify the full functionality of the 3ds Max 2024 plugin to ensure all menu actions are properly working in the next patch?

Thank you.

Yasmine · February 26, 2026, 9:07am

Hello,

This has also been fixed, and will be in the next SDK.

Thank you

LioC18 · February 26, 2026, 5:47pm

Do you have an ETA on when this patch will be pushed?
Sorry for asking. I’m just trying to determine whether rolling back to older 3ds Max and MSFS versions or wait for this update.

Thank you.

Yasmine · February 27, 2026, 9:16am

Hello,

It will be available next week !