"Open in Rider" leads to Rider-sided exception

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

26.313.41514

What subscription do you have?

Pro

What platform is your computer?

Windows 11

What issue are you seeing?

<img width="1528" height="1207" alt="Image" src="https://github.com/user-attachments/assets/cbfa8a12-992a-48d4-a77a-85d8c3a66588" />

When "Open in VS Code", everything works fine, but "Open in Rider" does not. Only if Rider is completely closed, then it works once. In a multi worktree, multi-thread environment, I would expect, that this works. I am pretty sure, that the Rider integration is not complete.

What steps can reproduce the bug?

1. "Open in Rider"
2. "Open in Rider"

What is the expected behavior?

_No response_

Additional information

_No response_