ChatGPT Plus subscription but logo is still green & no model version options

GPT black logo == v4.0
GPT green logo == v3.5

Even though I’m subscribed to v4, it’s still green in my chats. I even had a new ChatGPT Plus billing charge this morning. My icon is green so it’s defaulting to v3.5 and there is no way to change it even when creating a new chat there is no selection pull-down.

Seems it was a server-overload bug.

Have you fix the issue ? Encounter the same problem here.