As is see now when you add new images to an old post the new images appear next to the old images from the old post, somewhere in the depth of your images and they don't appear on the top of the main feed.
It prevents me of posting my current flash-mob, because I really want to show my images organized.
https://civitai.com/articles/7028
I've already opened a support ticket in order to know if it's a bug or a feature but haven't got an answer yet.