Looking at ChatGPT-4o Visual narratives demo https://openai.com/index/hello-gpt-4o I am not able to reproduce, what am I missing?
this is the demo
This is what I did to try and reproduce in the chat with ChatGPT-4o
Input
A cartoon mail delivery person with a smile on her face. She is standing facing forward in front of a white background.
Output
Here is the image of a cartoon mail delivery person with a smile on her face, standing in front of a white background. If you need any adjustments or additional details, please let me know!
Input
This is Sally, a mail delivery person: Sally is standing facing the camera with a smile on her face.
output
Memory update (Named the cartoon mail delivery person “Sally.”)
Got it! Sally is now the name of the cartoon mail delivery person. If you need any further modifications or additions, feel free to let me know!
input
This is Sally, a mail delivery person: Sally is standing facing the camera with a smile on her face.
Sally is standing in front of a red door to a house, holding a letter in her hand. We are looking at her from the side.
Output
Here is the image of Sally, the mail delivery person, standing in front of a red door to a house, holding a letter in her hand. If you need any further adjustments or details, please let me know!
The demo looked promising, but I am not able to reproduce - I tried again and it gave me this and the this, what am I missing?
Any ideas 
?