Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes

sophie.chauvet — Thu, 21 Aug 2025 15:48:20 GMT

Hello,

We had issues using maya 2025 on our productions.

The issue is a crash that occurs when opening of a scene (using mayapy and mayabatch only) that contains two references of the same file, where that file contains "*NodeEditorSavedTabsInfo*" nodes.

Opening the scene in GUI works fine, and does not cause a crash.

I have performed tests with a vanilla Maya installation (no plugins) for both Maya 2023 and Maya 2025, and the problem only occurs with Maya 2025.

Steps to reproduce :

- create a cube in a cube.ma file in maya 2025

- create a new file referencing cube.ma twice. Save it in assembly.ma

- use mayapy to open the assembly.ma file in python

- scene will crash at opening

Code used in mayapy to open the file :

import maya.cmds as mc from maya.standalone import initialize initialize() fp = r'D:\assembly.ma' mc.file(fp, open=True, force=True)

Scene is also crashing on farm with maya batch.

By debugging the Maya ASCII file, I was able to identify that these lines in the referenced cube.ma file are causing the bug:

connectAttr "pCubeShape1.msg" "MayaNodeEditorSavedTabsInfo.tgi[0].ni[0].dn"; connectAttr "pCube1.msg" "MayaNodeEditorSavedTabsInfo.tgi[0].ni[1].dn";

Which lead me think maya can't connect twice these attributes without gui anymore.

With the exact same lines, its working in 2023.

Stack trace :

Warning: Unrecognized node type for node 'hyperShadePrimaryNodeEditorSavedTabsInfo'; preserving node information during this session. Warning: Unrecognized node type for node 'MayaNodeEditorSavedTabsInfo'; preserving node information during this session. Stack trace: ntdll.dll!KiUserExceptionDispatcher DependEngine.dll!Tplug::addToNet DependEngine.dll!Tplug::copyFlags Shared.dll!TduplicateCmd::copyPlugFlags Shared.dll!TduplicateCmd::duplicateSceneFileNodes Shared.dll!TduplicateCmd::duplicateSceneFile Shared.dll!TglobalTranslator::doReadFile Shared.dll!TfileUtil::readFile Shared.dll!TfileReferencer::readReference Shared.dll!TfileReferencer::reloadReference Shared.dll!TfileReferencer::loadChildren Shared.dll!TglobalTranslator::doReadFile Shared.dll!TfileUtil::readFile Shared.dll!TfileReferencer::readReference Shared.dll!TfileReferencer::reloadReference Shared.dll!TfileReferencer::loadChildren Shared.dll!TglobalTranslator::doReadFile Shared.dll!TfileUtil::readFile Shared.dll!TsceneOperator::openFile Shared.dll!TfileCmd::handleFileOpenFlag Shared.dll!TfileCmd::handleFlags Shared.dll!TfileCmd::handleFlags Shared.dll!TfileCmd::doCommand CommandEngine.dll!TpythonInterpreter::dispatchMayaCommand CommandEngine.dll!pythonDispatchMayaCommand Shared.dll!TfileCmd::clearRefHierarchies python311.dll!_PyObject_MakeTpCall python311.dll!PyObject_Vectorcall python311.dll!_PyEval_EvalFrameDefault python311.dll!PyMapping_Check python311.dll!PyEval_EvalCode python311.dll!_Py_SourceAsString python311.dll!_Py_SourceAsString python311.dll!PyThread_tss_is_created python311.dll!_PyRun_SimpleFileObject python311.dll!_PyRun_AnyFileObject python311.dll!PyDict_DelItemString python311.dll!PyDict_DelItemString python311.dll!Py_RunMain python311.dll!Py_RunMain

EDIT: just a precision : I've tested various namespaces (foo / bar or foo and foo1) on the two refs, it's not solving the problem.

Versions tested :

Autodesk Maya 2025.3

Autodesk Maya 2023.3

We ended up deleting these nodes to avoid the crash. Is there another solution?

Thanks.

Re: Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes

brentmc — Fri, 22 Aug 2025 09:46:45 GMT

Hi,

This is a known issue that was addressed in Maya 2026.2:

MAYA-137713: Mayabatch crashes when nested referencing a scene with MayaNodeEditorSavedTabsInfo

Re: Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes

sparrishDHAXD — Fri, 05 Sep 2025 21:10:22 GMT

Could we get a fix for this in 2025?

topic Re: Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes in Maya Forum

Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes

Re: Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes

Re: Mayapy 2025 crash with *NodeEditorSavedTabsInfo nodes