Lightroom Classic

Description of IssueAfter Assist Culling (and Face Detection) analysis for a catalog reaches100% complete, quitting Lightroom Classic normally (File > Quit, not acrash/force-quit) and relaunching causes the "remaining photos toanalyze" counter to jump back up — i.e. photos that were alreadyanalyzed are treated as unanalyzed again. This is reproducible acrosstwo different machines (Windows and macOS) and multiple catalogs,including catalogs rebuilt from scratch via "Export as Catalog".Lightroom Classic Version Number (Help > System Info)Lightroom Classic version: 15.3.1 [202605261338-e36f8566]License: Creative CloudOS Version Number- Machine A (macOS): Mac OS 26, version 26.5.2 [25F84], arm64- Machine B (Windows): Windows (native, catalog originally migrated  from Mac to this Windows machine)Camera ModelN/A (issue is not camera/file-specific; reproduced on catalogs with56,000+ mixed JPEG/RAW files)Step-by-step Reproduction Instructions1. Open a catalog where Assist Culling / Face

When the same HDR AVIF or HDR JPEG is viewed on macOS, Apple Photos, Quick Look and Flow Vision adapt the highlight rendering as display brightness changes, while Lightroom Classic and Camera Raw keep rendering highlights much more directly. Is Lightroom intentionally bypassing Apple's system HDR photo rendering (EDR/tone mapping), or is there a preference to use the macOS HDR rendering pipeline?

Updated LRC to v15.4.1.  Since then I have only been able to use the Develop mode when connected to the Internet.  Without Internet connection Licence shows Unknown under Get Info in LRC.  Soon a s Internet access is available Licence shows Creative Cloud. Have tried lot of things... As per chat got.  Nothing seems to solve the issue.. Tried logging in and out of creative cloud and logging in again.Deleting files to recreate token... Trying to repair Creative cloud app.Any other options other than uninstalling all apps and reinstalling creative cloud and all apps.

Hello Everyone!I am new to lightroom, but I like the software until it slows down my whole gaming laptop and using upto 32GB of RAM. While working on simple JPG files, I don’t experience issues until I work with CR3 or DNG files. The problem occours when I have to use more features, such as blur lens, or masking tools.It slows down the whole PC so much I have to restart the sofware and sometimes it is simply crash.Adobe software require nuclear power to keep it run? Just because it is impossible that my gaming platform can’t run this sofware when all other softwares and games runs smoothly. Only this software made me a big surprise as it uses brutal amount of RAM storage, while I raised the virtual memory to 64GB. Huge dissapointment from Adobe that this problem can not be resolved.Otherwise, it would be very useful.Thank you if you have any better idea to make the performance better.

I cannot create a file on the external disc like saving my pictures year 2024. I tried to pick and slide 2024 file to the external disc, nothing happen.

the rest of the Lightroom functions seems ok except the when using the generative remove. it just freeze when reaches 100%. the problem just started today. 

“Lightroom can’t import this catalog because of an unexpected error” I shot a festival last weekend, did some on site editing on my laptop. Now i want to import the festival catalog to my main one. specs of the main one and the festival match, they’re both:Lightroom Classic-versie: 15.5 [ 202607291506-b8869fa7 ]Licentie: Creative CloudI can open both catalog on my computer i can optimize them, close one, open the other all without problem. So they both seem to be working. I’ve put them in the same folder. So in folder x is a folder current catalog and a folder festival catalog. But everytime i click File → import from a different catalog, i select the festival catalog and immediately i get the error “Lightroom can’t import this catalog because of an unexpected error”. Somebody who can advise me? 

PHOTOSHOP OPENS AND WORKS FINE BUT LIGHTROOM CLASSIC WILL NOT OPEN 

Hi, since the last update of LRC it changes the “date created” and the date “last modified” to the time of ‘now’ when I export my RAW’s to JPG’s. Before the update I had no problems, I have searched through a lot of settings and preferences, but I can not figure out what has changed. I’ve read some old posts regarding this topic, but I still don’t know what to do. Can someone please help?

Sliders for the new mask feather/edge seem quite sensitive.  Was wondering if there were any keyboard shortcuts available which would allow nudging the sliders a step at a time?

As soon as I import, “fetching previews” is stuck. No previews show.  I have tried updating, restarting the computer and the application, and going to the catalog settings- face detection was not checked/address lookup not checked / culling not checked.   

Hi all. I upgraded Lightroom classic to the latest version 15.5 which is the August update and now I find that I cannot see any of my images in the libary module. Lightroom was fine before the upgrade and now I find this happening to me. I want to know if this is a bug or something else. Has anyone else experienced thins issue after upgrading to the latest version of Lightroom classic. I have enclosed a screenshot if anyone can help out a solution to this. 

Problem: Lightroom Classic catalog backup fails every time, consistently at the final step — "Katalogsicherung wird komprimiert" (compressing the catalog backup). Error shown: "Lightroom konnte den Katalog '2026_07_LightroomFull-v14' nicht sichern" with generic advice to check folder permissions/disk space.System:Lightroom Classic 15.4.1 [202606201310-b9f148a4], Creative Cloud license macOS 26.5.2 (25F84), Apple M2 Max, 32GB RAM, arm64 Catalog:  (~4.2GB), on an internal HFS+ (Journaled) volume connected via PCIe Backup target tested:  (on boot APFS volume) — also failed with 2 other previously tried destination foldersAlready ruled out:Destination folder permissions/ownership — correct, and writable (verified via Terminal) Free disk space — 213GB free on boot volume, 4.2TB free on catalog volume macOS Full Disk Access — granted to Lightroom Classic Filesystem corruption — Disk Utility First Aid on the catalog volume: clean, exit code 0 Catalog SQLite structural integrity — PRAGMA integ

Trying to export a Video (MP4), status shows no progress at all for a long time. I have tried a 1 seconds video, its the same. I can still work on other files in the library. I have also export an image file to the same folder, while the video files is still in export process, the image files successfully exported.       Below is System info  Lightroom Classic version: 14.2 [ 202502071718-3869eef7 ]License: Creative CloudLanguage setting: en-THOperating system: Mac OS 15Version: 15.3.2 [24D81]Application architecture: arm64Logical processor count: 8Processor speed: NASqLite Version: 3.36.0Built-in memory: 16,384.0 MBDedicated GPU memory used by Lightroom: 273.9MB / 10,922.6MB (2%)Real memory available to Lightroom: 16,384.0 MBReal memory used by Lightroom: 1,487.5 MB (9.0%)Virtual memory used by Lightroom: 410,782.8 MBMemory cache size: 240.3MBInternal Camera Raw version: 17.2 [ 2155 ]Maximum thread count used by Camera Raw: 5Camera Raw SIMD optimization: SSE2C

I recently updated my version of Lightroom and moved to the 15.4.1. since then I have a problem of AI storage. all the modifications I do (remove with AI, denoise...) do not work or are lost when I work on another photos. I tried to follow all the steps mentioned by adobe.com, but nothing works. what should I do. the message error I get is “AI Edits Storage Issue - Lightroom has encountered an issue updating AI edits. Future AI edits may not be saved and could be lost. Please contact Adobe Customer Support for troubleshooting”.Unfortunately I can not contact anyone, apart from posting a message here.What should I do? I am a professional photographer and need LRC to work. thanks a lot for your help Emilie

I was told that “when an image is opened in LRC, sometimes Adobe automatically creates a mask” and I want to know if that is correct and if so how do I detect or search for these auto created masks? 

On a Mac mini M4 Pro running macOS Tahoe 26.6, Lightroom Classic 15.3 through 15.5 consistently hangs when generating Standard Previews.Environment Hardware: Mac mini M4 Pro Operating System: macOS Tahoe 26.6 Lightroom Classic versions tested: ✅ 15.2.1 – Works correctly ❌ 15.3 – Hangs ❌ 15.3.1 – Hangs ❌ 15.4.1 – Hangs ❌ 15.5 – Hangs IssueWhen selecting photos and choosing Library → Previews → Build Standard Previews, Lightroom starts generating previews but then freezes indefinitely. The progress may stop at different points (for example 4/4, 5/68, or 100%), but it never completes.During the freeze: Lightroom remains responsive, but the preview generation never finishes. CPU usage stays around 0–5%, indicating that the process is idle rather than actively rendering. Troubleshooting PerformedThe following steps did not resolve the issue: Disabled GPU acceleration. Deleted the preview cache (Previews.lrdata). Optimized the catalog. Tested multiple cata

 Lightroom Classic Bug ReportTitleLightroom Classic reports "The file appears to be unsupported or damaged" for valid Lightroom-generated HDR DNG files. Product Adobe Lightroom Classic 15.4.1 macOS 15.7.x (Apple Silicon) SummaryLightroom Classic reports that certain HDR DNG files are unsupported or damaged.However: Adobe Camera Raw opens and edits the files without any problems. Adobe Photoshop opens the files without any problems. Adobe DNG SDK Validator validates the files successfully. Lightroom Classic itself reports the files as invalid ("Validate DNG"). The same behaviour occurs in a brand-new Lightroom catalog and also with backup copies of the same files.Steps to Reproduce Open Lightroom Classic 15.4.1. Import or open the affected HDR DNG. Lightroom reports: The file appears to be unsupported or damaged.The file also cannot be imported into a brand-new catalog.Expected ResultThe HDR DNG should open normally, since: it is a Lightroom-generated HDR DNG, it validates

when i try to open lightroom it says that there is a problem and it will take a moment to fix it. then after a few seconds it says there is an unexpected error opening catalog.

Not as much of a question, but more a critical remark. Recently I noted that some new features in the latest Camera Raw update were not available in Lightroom Classic. Specifically I mention some masking features like "Depth Range" and the "Feather" and "Edge" options in the "Sky" mask. Earlier on we had "Denoise" in Camera Raw not needing to create a separate DNG file, when Lightroom Classic's Denoise resulted in an extra large additional DNG file.This is very inconvenient. To use these (very useful!) features, I now have to open a raw file as a smart object in Photoshop to continue with raw editing and save the result as a very large psb file. Later when continuing with the edit, I have to reopen the psb file from Lightroom Classic.I hope it is not Adobe's policy to continue with supporting new features in Camera Raw first and only later in Lightroom Classic, I find it cumbersome and annoying when Lightroom Classic lags with feature updates, complicating the workflow and resulting in

Is anyone else having issues with the copy/paste settings? I’ve tried to use Lightroom classic, and the regular light room, and they are both having the same issue. I have a photo that was taken literally 2 seconds apart, same exact lighting and everything, when I copy my settings, which I make sure I copy EVERYTHING, then paste it onto the photo that’s literally almost identical, it turns out look completely different. I know I’m not crazy because I did compare the settings side by side from original photo and second photo, and some of the adjustments didn’t match, and the mask also weren’t the same, so it literally changing up some of the edits by itself. This drives me nutssss, there’s noooo way I can edit each photo one by one… any one have this problem or a solution for this!!? 

I am getting worried and pretty desperate.   I got a Mac M4 and downloaded lightroom and transfered by catalog on to the M4.   My lightroom clasic is working insanely slowly so so that it take hours to move a few pictres from one folder to the next, deleting a file takes minutes, and moving from one file to another also takes along time. I tried to move a folder from one external hardrive toanother and I could not do it (3000 pictres). On my old compter I could do it all and fast (that compter was 12 years old). I do not know where the problem is. Please help me.   NB: I had Adobe on the line for two hours and the staff could not come with solutions. The second level assistance was reqested but after more than a week, I have still not received a call.   [Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

Es kann doch nicht sein, dass ich ständig den selben Fehler habe und ich mit grossem Aufwand Foto für Foto neu generieren muss, nur damit es dann eine Woch funktioniert und wieder kommt.Findet bitte schnell eine Lösung. Das erwarte ich von Adobe, der sich selbst als die Nummer 1 in der Bildbearbeitung präsentiert.Es gibt sonst mittlerweilen viele alternative  Anbieter auf dem Markt und ich muss mir ein Wechsel überlegen...