I'm new to LR. I dropped 165 photos into a collection, developed a bunch of them in LR and now wish to export some to PS 2015cc but when I try to right click to open one into PS it's greyed out as a disallowed function. There is no '?' to indicate the files are missing. I have located the original files on my hard drive and they are still there. I have no problem exporting images from Navigator or from the other files in Collections. I did notice that these 165 photos cannot be found in LR in Navigator in their original file as on the hard drive ( not sure if that is normal once a photos is added to a collection). I tried syncing the file on the hard drive in Navigator but it shows no photos to move. I don't remember how I originally put the first photos into this collection but am now wondering if I set it up wrong in the first place, but I can't move any of them out of this collection file without this pooping up "All files you selected are missing. No files can be moved". I have watched numerous videos and read lots and lots of tutorials and nothing solves this dilemma. I can't solve this problem on my own, any help would be appreciated!
Moving to Photoshop.
In the LR Library go to the Folders panel and find the correct folder with the thumbnails. Then right-click (control-click) on the folder name and choose "Update Folder Location"
Then navigate to the correct folder on your hard drive or external hard drive and choose the folder where the images are stored.
LR should automatically update the catalog links.