I've never had this problem before, & I've used Lightroom for 6 years now. I am trying to import photos by "adding" them from my external hard drive. But it is only letting me copy them over, which is creating a new folder on my computer and taking up TONS of space. How can I just simply "add" photos from the hard drive again? It won't let me click "add." If I upload from my desktop, it will let me "add." So it must be something with the hard drive? Please help!
Which version of Lightroom are you using? You have posted your question in the forum for the new Lightroom CC, the one which is cloud based. Was that your intention?