Thank you. I think this partially helped. It also help to start a new conversation and select Claude from the agent options. Thank you!

I have a similar issue. I have logged in to Xcode 27 beta 2 using my Anthropic account but when I try to start a chat I can't select the text box and I see a message that says. Please redownload Codex by going to Settings → Intelligence → Codex. Or another message like: Codex not installed. Get codex to resume the conversation.