Hello, I need help please. I was trying to avoid having all my photos upload to the default Pictures folder in C drive as it fills up the drive quickly. I moved some of the photos to an external drive and my second (D) Drive on my computer. I also tried to combine all my past and current Lghtrm Catalogs into one Catalog but I think I've lost some previews, helper or other required folders. Anyway all I'm getting are uploaded grey rectangles and some miniscule thumbnails.
Can anyone suggest a way to fix this or should I just uninstall and reinstall Lightroom CC?