It sounds to me like you (accidentally?) opened the wrong catalog.
Go to File->Open Recent and select each catalog shown there until you find the catalog with the 9000 images.
Thanks for your suggestion. Unfortunately, it did not work. I have only one
catalog, which is the one with 651 images. I should have added that none of
those images will open, which is another problem. Although tedious, one
solution might be to reinstall all the images from my hard drive. Or to
back track to yesterday on my hard drive and see if all the missing images
should up again in Lightroom. By the way, do you think it is worthwhile to
updrade to Lightroom 6? Should I wait to upgrade until this problem is
On Thu, May 26, 2016 at 11:51 AM, Tanuj Sandal <firstname.lastname@example.org>
Upgrading will not have any impact on this problem.
You need to use your operating system's search feature and search for all files on all hard disks whose name ends with .LRCAT. Double-click on each one found until you open the catalog that has 9000 images.
1 person found this helpful
I have just had a similar issue and the wonderful people on this site helped solve it. Turns out the computer had changed the drive letter that was assigned to my external hard drive and LR couldn't find it.
Right click on one of your missing folders in LR to see where the folder was last located and check against the current folder letter. Change back if necessary. A helpful person in my question thread also suggested changing the drive letter to something not commonly used (suchas M, N or O etc).
Hope this helps.