Originally posted by Murfy When I import into Lightroom, I have "don't import suspected duplicates" checked, however, it still has some images highlighted as if I have not imported them. Sometimes I forgot and end up importing an image 2 or 3 times before I clear off my card. How does it decide what is a duplicate image? Why does it think I have not imported images when I have?
I've had this happen many times. Don't know why it happens.
Seems to do it most often when I am at an event and swap cards several times. It is not a matter of the photo numbers overlapping between the two cards, either.
I insert one card, download photos. Insert the second card, download photos.
After a while of shooting, I insert the first card and some of the old photos download a second time along with new photos.
Once in that state, it continues to re-download existing images form both cards.
Oddly, it does not always happen, but enough to be VERY annoying.