Codex Desktop sidebar loses recent tasks after restart while local sessions remain

What version of the Codex App are you using (From “About Codex” dialog)?

26.825.51511

What subscription do you have?

chatgpt plus

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

I can reproduce this on Windows.

After restarting Codex Desktop, the sidebar rolls back to an older state (last Friday). Tasks and updates created from Aug 30 to Sep 2 no longer appear, while other shorter conversations restore normally.

The affected conversation is a long, multi-day thread. Its local session transcript still exists and the archive list is empty, so this appears to be a sidebar/index recovery issue rather than deletion.

Affected thread ID:
01a0437b-a72c-76b1-af56-dbf49971173c

The in-app /feedback uploader also fails consistently.

What steps can reproduce the bug?

1. Start or continue a long, multi-day Codex Desktop conversation.
2. Create or update tasks over several days.
3. Restart Codex Desktop.
4. Open the task/conversation sidebar.
5. Observe that the sidebar has rolled back to an older state and recent tasks are missing.
6. Check the local session files: the missing conversations still exist locally.

What is the expected behavior?

After restart, Codex Desktop should restore all recent tasks and conversation history in the sidebar. Context compaction should not make saved conversations disappear from the UI.

Additional information

Other shorter conversations are not affected. The archive list is empty. No full session log is attached because it may contain private project paths and conversation content.

Reproduce the restart regression on Windows using a long, multi-day conversation, then compare the local session files with the sidebar and archive state. Done means all recent tasks and conversation history reappear in the sidebar after restart without being lost through context compaction.