Lightroom Classic

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...

Lightroom Classic 15.4.1 on Windows: 1–2 second UI stalls when selecting photos — WPR trace points to MFC/Win32 window-handle processing Hello,  I am investigating a persistent Lightroom Classic performance problem on Windows. Selecting a different image can freeze the entire Lightroom interface for approximately 1–2 seconds.  This does not appear to be caused by RAW decoding, storage performance, the catalog, previews, GPU acceleration, plug-ins, or monitor refresh technology. Windows Performance Recorder traces consistently point to Lightroom’s main UI thread spending substantial CPU time in MFC and Win32 window-handle processing.  ## System configuration  - Lightroom Classic 15.4.1    Build: 202606201310-b9f148a4  - Camera Raw 18.4  - Windows 11 Business, build 26200.8737  - AMD Ryzen 9 5950X, 16 cores / 32 threads  - 32 GB RAM  - NVIDIA GeForce RTX 2080 Ti, 11 GB VRAM  - NVIDIA driver 591.86  - Catalog stored on an NVMe SSD  - 12 MP RAW files stored on another NVMe SSD  - Approxima

I had to create a new catalog and reimport all my photos. By importing from a previous catalog I got my collections back but not the publishing services like JF Flickr and Adobe stock. I have reinstalled JF Flickr, reauthorized in Flickr, without results. Can anyone help?

Seit dem Update von Lightroom Classic auf Windows 11 wird beim KI-Entrauschen keine neue -Verbessert-NR.dng mehr im Ordner erstellt. Der Entrauschungsvorgang läuft scheinbar durch, aber das Ergebnis wird nicht persistent gespeichert. Beim anschließenden HDR-Zusammenfügen werden wieder die ursprünglichen RAW-Daten verwendet, wodurch das Rauschen zurückkehrt. Früher funktionierte der Workflow korrekt: RAW entrauschen → neue DNG-Dateien entstehen → HDR aus den neuen DNGs erzeugen. Getestet mit DNG- und TIFF-Export, Neuimport der RAWs und erneutem Laden; das Verhalten bleibt unverändert.

Hi Community,I’m experiencing severe performance issues with Lightroom. The app is extremely slow, barely usable, while all other Adobe Suite apps run smoothly on my system.I’ve tried restarting the app, change settings, edit on my SSD but the issue persists. I haven’t made any recent changes to my setup that would explain this. I use Windows 11, release 15.2.1 and Camera Raw 18.2.2Does anyone have suggestions on how to resolve this?Thanks in advance for your help!

I want to just open adobe lightroom but it take me through the creative cloud and then it looks weird and not what it used to be before it got deleted. I want to just open my lightroom but i can’t and it looks the mobile version, i’m on windows 11 PC. I’ve linked an image as to what i have to open to get to lightroom and i don’t want to do that.  

Lightroom Classic v 15.4 backup attempt results in progress reporter showing “Checking catalog integrity → Copying catalog → Compressing catalog backup,” then reports “Lightroom was unable to back up the catalog named “Lr6 Catalog-v15-4”.  Please check your folder permissions, and make sure that you have available space on your backup drive and main catalog’s drive.”Lightroom has full disc access and backup folder is specifically set to “read & write” for all users.  The backup generator writes a folder named for the backup date into the Lightroom “Backups” folder, but that dated folder remains empty.System specs:  iMac Pro (2017) OS Sequoia 15.7.7, with Mac SSD 2 TB with 790 GB available (far more than the size of a catalog).  Chosing a different folder at parent level produces same result.  Restarting Lightroom produces same result.  Restarting iMac and Lightroom produces same result.  Lightroom restarts and functions (for now), but I am unable to back up my catalog. Thanks for a

it says “Adobe Lightroom Classic” is damaged and can’t be opened. The file was downloaded on an unknown date...

Even submitting this report has a problems. The category selection is organized weird as well. The Denoise function in Lightroom classic constantly need to be updated and never actually updates. The image never stays denoised. It just keeps asking the user to update and fails without notification of it. It just prompts you to update the denoise function again.

I import CR3 files in daily directories into my catalog. I process the CR3 files then export them converting them to JPG I then import the JPG files to put back into the daily directory they came from and to keyword them. The counters on all the directories are set to zero after this import. I have to exit and restart Lightroom to get the counters reset to their actual number of files in each folder. If I delete the CR3's as no longer necessary the counter goes negative by the number of photos removed.

I’ve already tried every option to improve or fix the slowness in Lightroom’s Develop module. Nothing worked—nothing at all—except downgrading to an earlier version (but that’s absurd; I pay to have the best).