Codex Agent in Xcode is broken with all latest installs
OpenAI Developer Community
June 3, 2026
Codex agent in Xcode is broken for me. Can’t login anymore. I’m on Max. I wiped whole of Xcode, Codex App also. Resinstalled fresh. Nothing. Return from a prompt in Xcode I get “The data couldn’t be read because it isn’t in the correct format.”. It started out of the blue. Anyone else having this issue?
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