CC Switch local proxy failed while handling Codex endpoint /responses. Provider: DeepSeek; model: deepseek-v4-flash; upstream_status: HTTP 400; cause: The `reasoning_content` in the thinking mode must be passed back to the API.

Self Checks / 自检

• I have read the FAQ section in README. 我已阅读 README 中的常见问题。

• I have searched for existing issues, including closed ones. 我已搜索过已有的 Issue，包括已关闭的。

CC Switch Version / 版本号

3.11.1

Operating System / 操作系统

Windows

Related App / 涉及应用

Codex

Steps to Reproduce / 重现步骤

CC Switch local proxy failed while handling Codex endpoint /responses. Provider: DeepSeek; model: deepseek-v4-flash; upstream_status: HTTP 400; cause: The reasoning_content in the thinking mode must be passed back to the API.

Expected Behavior / 期望行为

CC Switch local proxy failed while handling Codex endpoint /responses. Provider: DeepSeek; model: deepseek-v4-flash; upstream_status: HTTP 400; cause: The reasoning_content in the thinking mode must be passed back to the API.

Actual Behavior / 实际行为

CC Switch local proxy failed while handling Codex endpoint /responses. Provider: DeepSeek; model: deepseek-v4-flash; upstream_status: HTTP 400; cause: The reasoning_content in the thinking mode must be passed back to the API.

Additional Context / 补充信息

No response