Problem.
After installing the UnrealDatasmithMaxExporter_5_3.msi plugin for 3ds max 2024, a problem appeared: 3ds max loaded into the workspace and immediately crashed, without any messages, the whole thing was launched on Windows 11.
Solution.
Open the DatasmithPostStartUp.ms file using Notepad++.
IMPORTANT! Run Notepad++ as administrator.
Download Notepad++ here: https://notepad-plus-plus.org/downloads/
The DatasmithPostStartUp.ms file is located here: C:\ProgramData\Autodesk\ApplicationPlugins\UnrealDatasmithMax\UI
If the ProgramData folder is not displayed, then do the following:
1) Open File Explorer from the taskbar.
2) Select View > Show > Hidden items.
Next, in the file itself, we find the line Datasmith_OnLoad true UnrealEnginePath and change true to false, as a result the line should look like this Datasmith_OnLoad false UnrealEnginePath, save.
Ready! Everything should work now.