I wanted to import some photos from a memory card which had some old photos on it. Normally LR automatically only imports new photos. This time it looked like it was going to import photos I knew were already on the hard drive and in the catelogue. I clicked on "New photos" but it still imported duplicate copies, giving the second copies the "-2" extension. How do I stop LR doing this?
Does it make any difference if you toggle the destination panel on the right-hand side of the import dialog? It seems rather quirky but some users claim that clicking to close and then opening the tab again restores normal import behaviour.