[Bug] Active Desktop task updates without rendering progress in main chat

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

Codex Desktop 26.818.22352

What subscription do you have?

Not disclosed for privacy

What platform is your computer?

macOS 26.5.1 (25F80)

What issue are you seeing?

A long-running task remains active and its backend task state continues to receive newer update timestamps, but the main conversation pane renders no new progress or commentary. The model-visible thread state can report an in-progress turn while its visible item list is empty.

This makes a healthy active task appear stalled or abandoned. The user cannot distinguish ongoing work from a hung task and may repeatedly request status or duplicate coordination.

What steps can reproduce the bug?

1. Start a long-running task in Codex Desktop.
2. Let the turn remain active while background work continues.
3. Open or remain on the task in the main conversation pane.
4. Observe that no progress/commentary appears even while the task state update timestamp advances.

What is the expected behavior?

An active task should render new progress items as they arrive. If no displayable progress item is available, the UI should at least show an explicit working indicator and the latest activity time so the user can distinguish ongoing work from a stall.

Additional information

Observed on 2026-09-07. In one occurrence, the current turn began at approximately 19:12 EDT and the task state updated through approximately 19:24 EDT, while no progress items appeared in the main chat.

Possibly related but not an exact duplicate: #24263 and #40342. This report contains no transcript, repository details, credentials, private paths, account identifiers, or task/thread IDs.

Start by reproducing the long-running task in Codex Desktop on macOS and compare advancing backend task timestamps with the main conversation pane's visible items. Trace the task-state and progress-rendering entry points; done means active progress appears, or an explicit working indicator and latest activity time are shown when no displayable item exists.