Hi, I have a client - and I talk about AI as an independent consultant. I was asked today, why would my client apple ChatGPT app, even though has memory off (or at least deleted memory and answer set to default English. He does speak Bulgarian using other apps occasionally (e.g. uses microphone on phone), but reckons he never used Bulgarian on OpenAI chatGPT app on iOS. Screen shot included. Could this be a cross app platform share, or some sort of bug. His English is very good with almost zero accent. Ideas?