If FileRootPath of the sandbox is set to a network drive, the Notepad program running in the sandbox cannot save files properly.

[pangshangji]

Describe what you noticed and did

1. Create a new box.
2. Map a network drive locally as a T drive.
3. open Sandboxie.ini，add FileRootPath=\??\T:\Sandbox\%USER%\%SANDBOX% under the new sandbox.
4. Starting Notepad in a newly created sandbox and saving it to the Documents folder after entering content will result in an error message.

How often did you encounter it so far?

every

Expected behavior

Can be saved to the network drive normally.

Affected program

Not relevant

Download link

Not relevant

Where is the program located?

Not relevant to my request.

Did the program or any related process close unexpectedly?

No, not at all.

Crash dump

No response

What version of Sandboxie are you running now?

Sandboxie Plus 1.13.7 64-bit

Is it a new installation of Sandboxie?

I recently did a new clean installation.

Is it a regression from previous versions?

No response

In which sandbox type you have this problem?

In an Application Compartment sandbox with no isolation (green sandbox icon).

Can you reproduce this problem on a new empty sandbox?

I can confirm it also on a new empty sandbox.

What is your Windows edition and version?

Windows 10 pro 22H2 64-bit

In which Windows account you have this problem?

A local account (Administrator).

Please mention any installed security software

Microsoft Defender Antivirus

Did you previously enable some security policy settings outside Sandboxie?

No response

Trace log

No response

Sandboxie.ini configuration

No response

[DavidXanatos]

oh this is not a supported usecase!!! there are a hundred things with that which could fail

[bastik-1001]

Can you explain briefly, what the issue is and why this isn't something that is supported? I am just curious and don't seem to mind that it is not.