Downloads within chats are failing every time

I have had success with files chatGPT prepared for me a little while ago a few times. For many months now though they don’t work anymore. It doesn’t matter if it’s a simple markdown file i’m asking for or a more complex project zip that a custom GPT prepares for me.

They fail from the chatGPT macOS app, from Chrome and also from the iOS app - no matter if i’m using my home line DSL provider or mobile. SO it shouldn’t be related to that as well.

From Chrome i can see i’m getting 403 errors when trying to access that URL

Here’s an example URL

hxxps://chatgpt.com/backend-api/conversation/my_convo_id/interpreter/download?message_id=my_msg_id&sandbox_path=%2Fmnt%2Fdata%2Fstreamlit-crewai-sample.zip

I removed convo and message id.

Not sure why this doesn’t work anymore but I can’t find a way to fix it on my ende - can’t imagine how i could fix it.

Any idea? Looks likea bug to me.