I have transferred my lightroom from windows to mac. I moved the most up to date LRCAT file but though it lists the correct number of photos in the library they are not visible. Do I need to download something else from my windows pc?
Thanks in advance
You have to transfer all your original images as well with the complete folder structure and then, relocate the missing images in the Catalog.
Follow this article to relocate missing files: How to find missing photos in Photoshop Lightroom