New Copilot desktop sessions do not appear in GitHub Mobile

Short summary

New Copilot desktop sessions do not show up in GitHub Mobile. The newest session visible on mobile is about 3 days old, even though several newer sessions exist on desktop.

Affected version or release

Desktop: GitHub Copilot app 1.1.19 (github.exe ProductVersion 1.1.19)
Mobile: GitHub Mobile (Copilot sessions list)
OS: Windows 11 Enterprise (build 26200)

Installation context

Same GitHub account on Copilot desktop and GitHub Mobile. Desktop has continued creating and updating sessions after the last session that appears on mobile.

What happened?

GitHub Mobile still shows a Copilot session from about 3 days ago as the newest one. Since then I have started multiple sessions in the Copilot desktop app, including sessions that are still active today. Those newer sessions do not appear in the mobile session list.

This looks like a sync / listing gap between desktop sessions and GitHub Mobile, not just an inability to steer an already-listed session.

Steps to reproduce

1. Create or continue several sessions in the GitHub Copilot desktop app.
2. Confirm those sessions exist and update on desktop (including sessions created after the last one visible on mobile).
3. Open GitHub Mobile and look at the Copilot sessions list.
4. Observe that sessions newer than about 3 days do not appear. The mobile list stays stuck on an older session.

Expected behavior

GitHub Mobile should list recent Copilot desktop sessions, including sessions created in the last 3 days, so they can be opened or steered from the phone.

Additional context

Evidence from the local Copilot desktop session store (data.db) on 2026-09-12, without session titles:

Sessions created on desktop since 2026-09-09 (none archived):

• 2026-09-12: 2 sessions (newest created 2026-09-12T16:47:37Z)
• 2026-09-11: 8 sessions
• 2026-09-10: 4 sessions
• 2026-09-09: 5 sessions

At least 2 of those sessions were still running / last updated on 2026-09-12, for example:

• da9eb397-5cfd-4cd3-bd11-1c6ee8752e6d created 2026-09-10, updated 2026-09-12T22:36:36Z, is_running=1
• c28de23a-9614-41a8-9acb-0a142e1e6279 created 2026-09-11, updated 2026-09-12T22:32:01Z, is_running=1

Observation from the same store: recent sessions have remote_control_enabled=0 and remote_session_mode=export. I do not know if that is expected, but it may be related if mobile listing depends on remote availability.

Related, but not the same:

• https://github.com/github/app/issues/1302 (session visible on mobile but steering disabled)
• https://github.com/github/app/issues/941 (mobile does not render thinking trace)

No screenshot attached.

Start by reproducing the issue with several current Copilot desktop sessions, then compare the desktop session store data.db with the GitHub Mobile Copilot sessions list. Check whether remote_control_enabled=0 or remote_session_mode=export affects mobile visibility, and review related issues 1302 and 941. Done means recent desktop sessions consistently appear in the mobile list and can be opened or steered as expected.