Lightroom CC Classic not Responding

Most of the times "Not Responding" means there's not sufficient system resource. The amount of resource an application uses while in use is far more than that used while at rest. Many times it requires more than twice the amount of resource while in use than while at rest. It would appear the resource to open the images in the library is limited. Have you tried removing some of the images from the library and see what happens? Probably working from a project folder having just the images you're currently working with. Or remove some of the images from the library. You remove images from the library this way:

1. With the image open, tap the delete key
2. Chose remove (at the right) on the pop-up dialogue box.

The video  how to remove images from lightroom classic cc library - Bing video  explains how you can remove images from the Lightroom catalogue without removing it from your computer, as well as how to remove it totally from your computer.

Compare your resource with the information at  https://helpx.adobe.com/lightroom/kb/optimize-performance-lightroom.html and see where you require to optimize your resource.

Also you could work in Lightroom while simultaneously having the Task manager up to see if something else is grabbing the CPU intermittently during these “not responding” moments.

Please let us know if this helps.

JG

I've had this problem for a very long time in the Library module. I have a Dell XPS8900 with quad core intel i7's, windows10 Pro,  2 displays, 2TB internal SSD, 6TB external drives. I don't use graphics processor, don't use face recognition, only write metadata with cntrl S command, have had this problem on three different desktops and 3 versions of windows ( 7, 8 and 10). My cache is set at 50gb and is on the SSD with my catalog, my photo library is on the external 6TB drive. I have lots of spare disk space. It takes 5 - 20 seconds after selecting another photo to keyword before LR is ready with all the keywords and photo information. When selecting multiple photos to click and move to a collection, I have to wiggle the mouse until the photo stack shows before moving the cursor, else it does not work. LR classic CC was left running overnight and I displayed the preferences and then clicked on "purge cache". LR went into the non-responding mode and took about 2 minutes to complete the operation.

If you put the cursor over the LR logo in the systems tray while it is in the non-responding mode, you see many windows flash by. When in the non-responding mode the total computer is of no use for any other task/program as LR keeps changing between non-responding and responding. Somewhere LR is missing or losing I/O completion status and keeps looking for results it has missed. In programming, the normal path code is 20% of the code, the other 80% is error processing. LR has a serious systems programming issue with its muti-threaded processing.

I have to go through "Task manager" once or twice a day to shut down LR Classic CC due to its non responsive behavior. At this point, I have experienced this problem over a hundred times!!! The actions (I/O) that were being processed when LR Classic goes into non-responsive mode appear to always be completed when I restart it, however I have started to detect missing photo files at random places but the .xmp file still exists.

I'm at the point that I'm ready to find another photo processing program. It's an insult to have to pay for this abuse. get me a diagnostic tool and I'll run it to get Adobe some additional data as I encounter this problem with every LR Classic CC use.

Why aren't Adobe addressing what is clearly a very common problem?

Lightroom is conpletely worthless with this constant "Not responding" issue. I've tried all the suggestion here, and nothing has helped. I neve had this problem before switching to CC.

Is Adobe paying any attention to what appears to be many, many complaints?

Update 7.4 seems to have fixed the freezing problem!  They don't even mention it in their update notes, only 'bug fixes', so I took a chance and installed it and so far after a couple of hours no freezing.

I have been using LrCC for about 3 months.

no issues until I uploaded 1000 photos this weekend.

the blue circle keeps going around and around.

is this the program loading each image up to the cloud or something?

i was trying to dump a load of photos into a link I could share. Not working at all for 24 hours now.

forced shut down several times.

Some 'hints' I have picked up-

1. Switch [Off]  Face recognition.

2. Switch [Off]  Sync to mobile.

3. Turn [Off] 'Automatically write changes into XMP' in Catalog Settings.

4. Purge the Video Cache.

5. Refresh the Previews Cache by deleting and allowing to re-build.

6. Turn [Off] "Use Graphics Processor" if you do not have a Retina 4K monitor.

7. Optimize the catalog occasionally- at Catalog Backup, or in the Preferences/Performance.

8. Use Smart Previews instead of Originals for Image Editing- in the Preferences/Performance. Create SPs only for 'working' folders of images.

9. Read some advice at- https://www.lightroomqueen.com/lightroom/performance/

I have the same problem. LR worked fine through April, then there was a series of Windows and LR updates in May that made LR unusable. Not sure which is at fault. I made no hardware changes.  I have tried all the various suggested solutions, removed and reinstalled LR, gone back to LR7.2, disabled graphics, updated video drivers. I noticed that the hard drive that I have my pictures on is running at 100% but not reading or writing anything. I ran dskchk earlier, no issues found. It seems like LR has put the hard drive into some sort of endless loop. The drive is 6TB, about half full, and LR cache is 30GB on the same drive. After exiting LR I am unable to access the drive using File Explorer for about 10 minutes. Computer is a Dell XPS8900, 64GB RAM, NVidia GeForce 960 video card, 8 logical processors, Windows 10.0.17134, 2 displays 1920x1080. Noticed that when I opened LR the hard drive activity went to 100% (not surprising) but then returned to baseline. Paged through about 6 photos OK then LR froze and the HD activity went to 100% and stayed there with no read/write activity and the drive is not accessible from File Explorer. I checked for corrupted files but there didn't seem to be any. CPU is at 4%, memory usage is 18%, other hard drives at 0%, video GPU at 1%. If I wait long enough the hard drive usage drops to baseline and I can work on a few pictures in LR. Then the whole cycle resumes. Sorry for the long monologue but was hoping maybe this would help identify the problem.

I have found that LR (CC Classic) is corrupting files on my hard drive. Everything works fine until I open it. It may work initially but then HD usage goes to 100% without any read/write activity, becomes inaccessible, and running CHKDSK finds corrupted files.

I have read all of these threads and I am having the same issues with LR CC. I am seriously considering trashing LR altogether and try something else. Maybe it's time to cancel my CC account.

My Lightroom has just starting "Not responding" after running it for a year with no issues. No recent changes. Plenty of power, memory, storage. Just wanted to bump this as I've searched many threads with no answer. I will continue trying to fix the issue and report back if I find anything helpful. Thanks for the details from your research, Sulco