When you don't want OpenAI use your ChatGPT chats for their AI models by turning off "allow them to be used to improve our models", it is no longer possible to have longer conversation then a few minutes.

When you focus back on the tab with ChatGPT after a few minutes, then this event is probably used to wipe the conversation, because you can see the page getting cleared when you want to continue.

Before this issue it, was possible to have a conversation open and stable for 6 hours (already not ideal).

This new behavior hinders usage like solving software development or system admin issues. This also affect users with the Plus subscription that might want to use ChatGPT in a professional context and can't offer company data to be used in OpenAI models.

It is not clear if it is an honest mistake or a newly introduced limitation to nudge people into sharing more data.