I use ChatGPT (GPT4) to build scaffolding for python one-off scripts, and over the past 3-4 days I'm getting nonsense. Not python-looking nonsense, but markdown

I use ChatGPT (GPT4) to build scaffolding for python one-off scripts, and over the past 3-4 days I'm getting nonsense. Not python-looking nonsense, but markdown, weird quotes, random text, etc. Same prompts.