Thank you Roei for answering.
I do not use this function very often. Last time I used it (just like this) I was in version 12. But in version 13.5 it is the same.
I use this function when exporting material for e.g. titles from Cinema 4D.
Link to the project:
I opened your project and it behaves as expected and not as your video shows.
Strange. I have tested this o 5 dferent versions of after effects. On windows and mac. Even a friend had the same problems I have. So what version are you using? Can you save the file on your computer and send it back? I'm curious if this will affect the behaviour.