Okay. So, I used a company to outsource some editing. I sent them a copy of my raw files and a LR catalog of them via Dropbox.
They edited that catalog and sent it back to me (I have done this previously, so normally it isn't an issue)
When I open the catalog in LR of the work they did, I need to locate and re-link my files. I find the missing files on my desktop, hit locate and when I try to select one of the images to link nothing happens. I hit select and return but it doesn't actually select it.My program and OS is up to date.