Diffs outside of Last Turn no longer visible in review panel

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

26.409.20454

What subscription do you have?

Pro $200

What platform is your computer?

Microsoft Windows NT 10.0.22631.0 x64

What issue are you seeing?

In the side panel, I am no longer able to see any file diffs, other than "Last turn". Refreshing the diffs and restarting the computer have not fixed the issue.

What steps can reproduce the bug?

Create a new branch off of master. Ask to Codex to edit a file and save it. Go to the side panel and look for diffs. A diff will appear for Last turn, but not for Unstaged, Staged, or Branch (your new branch -> master). Committing the change makes no difference either.

What is the expected behavior?

In the scenario described above, there should be a Branch diff visible.

Additional information

I believe my version of the Codex app updated recently, and this is when I first saw this behavior. Before, diffs were working fine. I run WSL as my agent environment.