[Bug] v2.3.0.1 - Folder Status Indicator: status_v2 files not generated

[NotesOfReality]

Environment:

• Version: 2.3.0.1_stable_2026-04-24

• OS: Windows

• Launch Method: Duplicati.GUI.TrayIcon.exe via Task Scheduler (Highest Privileges)

• CLI: PowerShell 7.6.1

Issue:

Windows Folder Status Indicator fails. Icon overlays remain invisible.
Background service starts. Service creates lock_v2 in %LOCALAPPDATA%\Duplicati\control_dir_v2.
Service fails to generate status_v2_[ID] files. Shell extension receives zero metadata.

Reproduction Steps:

1. Append --enable-folder-status-service to startup arguments.

2. Execute RegisterFolderStatusExtension.ps1 as Admin.

3. Verify ShellIconOverlayIdentifiers registry priority. Used 3-space prefix to beat OneDrive.

4. Restart explorer.exe.

5. Run backup job.

6. Check control_dir_v2. Result: Directory contains only lock_v2. No status files.

Isolation Test Performed:

Targeted absolute path C:\StatusTest containing 2 text files.

Eliminated environment variable parsing errors.

Eliminated large job (126k+ files) timeouts.

Result: Backup succeeds instantly. status_v2 files still missing.

Logs & Exception:

Live log shows “Success”.
Server log catches finalizer thread exception. Export thread dies prematurely.

# Exception
System.AggregateException: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. (The CancellationTokenSource has been disposed.)[cite: 2]
 ---> System.ObjectDisposedException: The CancellationTokenSource has been disposed.[cite: 2]
   at System.Threading.CancellationTokenSource.get_Token()[cite: 2]
   at Duplicati.Server.Runner.<>c__DisplayClass16_2.<<RunInternal>b__3>d.MoveNext()[cite: 2]
   --- End of inner exception stack trace ---[cite: 2]

# Message
A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. (The CancellationTokenSource has been disposed.)[cite: 2]

P.S. : I hope my style is not too concise…

[kenkendk]

Hi @NotesOfReality, welcome to the forum

@NotesOfReality

Windows Folder Status Indicator fails. Icon overlays remain invisible.
Background service starts. Service creates lock_v2 in %LOCALAPPDATA%\Duplicati\control_dir_v2.
Service fails to generate status_v2_[ID] files. Shell extension receives zero metadata.

Thanks for the detailed reporting. There is another report here:

Release: 2.3.0.0 (Stable) 2026-04-14

I created a small job for testing with two subfolders in source (each containing one file as well as the source root directory with one file) but during the whole run (about 30 seconds) there was no overlay on the included subfolders’/files’ icons (even when the webui indicated that those files were being processed). I also refreshed the Windows explorer view but nothing changed. Not sure what I am doing wrong.

We need to revisit the overlay handling to fix it.

[NotesOfReality]

Thank you, for your kind welcome especially
I’ll be happily waiting for the next version, and hopefully I’ll remember to report if it gets fixed by then.
Feel free to mention me as you see fit , if I could be of any help

Have a nice day