My lightroom catalogue got deleted, backup was apparently in same folder as the catalogue but a separate folder from all the images so I tried to rebuild the catalogue by making a new one importing the full folder set. However, though it says the import is complete many of the folders and photos won't show up in LR though when I try to reimport those it refuses claiming that they are already present. When I do a search for the photos by name they are not found anywhere nor do they show when I scroll through the full photo set. Where are they? How can I get them to show up on LR again.