Fast mode is not preserved after restarting the Codex desktop app

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

Codex desktop: 26.730.61639 Build: 6234 Bundled Codex CLI: 0.147.0-alpha.1.2

What subscription do you have?

Pro 20

What platform is your computer?

_No response_

What issue are you seeing?

After updating to Codex desktop version 26.730.61639 (build 6234), Fast mode is no longer preserved across app restarts.
Steps to reproduce:
Create a new task.
Confirm that Fast mode is enabled.
Send at least one message.
Quit the Codex desktop app completely.
Reopen Codex and return to the same task.
Expected behavior:
The task should remain in Fast mode.
Actual behavior:
The task is restored in Standard mode. Newly created tasks still default to Fast, but they switch to Standard after the app is restarted.
This also affects existing tasks and reproduces in the standard Codex app environment. My global configuration contains service_tier = "priority" and is loaded successfully.
Environment:
Codex desktop: 26.730.61639
Build: 6234
Bundled Codex CLI: 0.147.0-alpha.1.2
macOS: 26.6

17:44

What steps can reproduce the bug?

After updating to Codex desktop version 26.730.61639 (build 6234), Fast mode is no longer preserved across app restarts.
Steps to reproduce:
Create a new task.
Confirm that Fast mode is enabled.
Send at least one message.
Quit the Codex desktop app completely.
Reopen Codex and return to the same task.
Expected behavior:
The task should remain in Fast mode.
Actual behavior:
The task is restored in Standard mode. Newly created tasks still default to Fast, but they switch to Standard after the app is restarted.
This also affects existing tasks and reproduces in the standard Codex app environment. My global configuration contains service_tier = "priority" and is loaded successfully.
Environment:
Codex desktop: 26.730.61639
Build: 6234
Bundled Codex CLI: 0.147.0-alpha.1.2
macOS: 26.6

17:44

What is the expected behavior?

_No response_

Additional information

_No response_