Codex App keeps resetting compound-engineering plugin to a stale version

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

26.527.31326

What subscription do you have?

Pro

What platform is your computer?

Darwin 25.5.0 arm64 arm

What issue are you seeing?

I installed the Codex plugin compound-engineering@compound-engineering-plugin from https://github.com/EveryInc/compound-engineering-plugin using the official installation flow.

The install succeeds initially. After installation, the plugin cache contains version 3.9.3:

~/.codex/plugins/cache/compound-engineering-plugin/compound-engineering/3.9.3

After Codex Desktop continues running for a while, or after restarting Codex Desktop, the installed plugin is replaced with version 3.8.0:

~/.codex/plugins/cache/compound-engineering-plugin/compound-engineering/3.8.0

Example observation:

• 16:04: the installed plugin directory was 3.9.3
• 16:22: the installed plugin directory had changed to 3.8.0

Re-adding the plugin succeeds temporarily, but the installed version later changes back to 3.8.0 again.

Expected behavior:
Codex Desktop should keep the installed plugin at 3.9.3.

Actual behavior:
Codex Desktop replaces/downgrades the installed plugin to 3.8.0.

No visible error message is shown.

What steps can reproduce the bug?

1. Install or re-add the plugin:

codex plugin add compound-engineering@compound-engineering-plugin

1. Confirm that the installed plugin cache contains version 3.9.3:

ls ~/.codex/plugins/cache/compound-engineering-plugin/compound-engineering

The output shows:

3.9.3

1. Restart Codex App, or keep Codex App running for a while.

1. Check the installed plugin cache again:

ls ~/.codex/plugins/cache/compound-engineering-plugin/compound-engineering

1. The output now shows:

3.8.0

What is the expected behavior?

_No response_

Additional information

_No response_