I've noticed in several chats, that the assistant will reference an attachment I sent several prompts ago as if I had just sent it with my most recent message.
For example, in my current chat, I attached 1 file, which was read and referenced in the reply to that message. Two messages after that though, the model replied with "But your attachment just changed the picture in an important way, so read the middle section before you go changing anything." In my experience, this will keep happening, with a reference to the attachment in the occasional reply, even if I never attach anything again.
I'd expect the replies to not reference attachments from several messages ago as if they were new.
Here's an example of me directly asking if there is an attachment:
