BUG
When you click on "try prompt" in favourites, the system generates four images, one of which is almost identical to 'favourite' with minor differences. If you try to add the new similar image to your favorites, it initially shows that it is already in your favorites. However, if you unfavorite the image and then favorite it again, it replaces the old similar image with the new one. This behavior can be considered a bug since both similar images should be allowed in the favorites instead of replacing each other, as they are not exactly the same.
STEPS TO REPROUDUCE
1. Try any prompt and add an image to favourite.
2. Go to favoruites and click 'try prompt'.
3. Try to add the visually 'similar' image to favourites.
Result: Images will replace each other.
Ass you can see in the images below, there is a screenshot of the 'favourite'. And then is a screenshot of the new similar image showing that it is already in favourites when it is not.