Split Diff doesnt work when being in "Large diff detected - showing one file at a time" mode

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

Version 26.422.21459 (2049)

What subscription do you have?

$200

What platform is your computer?

Darwin 25.1.0 arm64 arm

What issue are you seeing?

Split Diff doesnt work when being in "Large diff detected - showing one file at a time" mode. When having fewer files, it works normally.

What steps can reproduce the bug?

Create a large change so you have a large diff detected, and then try switching to split diff.

What is the expected behavior?

_No response_

Additional information

_No response_