Everything. The current implementation is unusable. If you see differently then probably you are looking at Codex chats, not chats.

whether i use the new "chat" button that just appeared after the update, or use the familiar chat underneath the "projects" heading, everything appears to be working just fine. (i am using "ChatGPT Work" not "ChatGPT Codex")

is there a 3rd chats somewhere that i am missing?