When side panel is closed I cannot hotkey between chats

You can discuss Codex-related issues here, but the official place to report them is the OpenAI Codex GitHub Issues. As I’m not certain which Codex variant you’re using, I haven’t searched for a matching issue. If you locate an issue that matches your situation, consider adding a reaction to increase its visibility. If no existing issue applies, open a new report and include clear reproduction steps. It’s generally worth searching existing issues first to avoid duplicates and to consolidate feedback.