Lightroom Classic

I just upgraded my Mac Air M3 2024 from Sonoma to Sequoia. I have LR 15.3 and PS 27.6. When I try “Edit in..”I get the message The file could not be edited because Adobe Photoshop 2026 could not be launched.I have had this issue before and managed to fix it but not this time. I have read all the suggestions here and in Reddit and tried them outUninstall Lr ; Uninstall PSReinstall Ps first then reinstall Lr  - doesn't workI’ve tried uninstalling and reinstalling the other way round - doesn’t workI’ve tried the above combinations with or without saving preferences in Lr and/or PS - doesn't workThe Lr preferences are correct.I dont have any other PS installed and no Betas.Can someone please help - as this is driving me crazy

I am working on an old file from a Nikon D810, and when I use either AI Denoise or Generative Remove, the white balance changes starkly over the whole image. See screenshots below, the only change is that I did a generative remove of the top left blurry section. The same happens with Denoise, though not with Super Resolution. When I try to modify the white balance, it has a clear threshold where adding a single digit to e.g. the tint completely changes the image. This is on Lightroom Classic 15.3.1 on macOS on Apple Silicon. I reimported the image to a clean catalog in case the AI info had somehow been corrupted, but the issue persisted.  

Interesting problem:MacOs 26.2, LRC 15.1.1Backup catalog fails if I assign it to a network-NAS-volume. All my photos are on the same NAS-volume and I can read/write without any problem.If I change the backup-location to the internal drive, no problem. Don’t want that, because the LR-catalog itself is on the same drive.I noticed the backup process starting with much enthusiasm, then at about 40% it slows down, but does proceed till the end (compress). And then it gives up with an error message and tells me to check the rights and space (both fine).I recently upgraded LRC from v12 (on older macbook, no upgrade possible due to old MacOS) to this version (on new macbook). The old setup did work with the same NAS without any problem (other than very slow). I did not try a backup v12 on the new macbook.Working around now, backup to the same local internal drive as the catalog itself and copy the backup by hand to the NAS. Anyone has a clue? Thanks for your response!Ernst

The AI function interferes with my ability to get an answer. It only provides data on unrelated issues.I have been using Lightroom classic for more than a decade. I uploaded about 50 photo files into Lightroom classic a week ago and worked on some of them.Today, they are not listed in the collections panel by date on the left like all of the other files I have uploaded over the years. The newer files are always listed at on the bottom of that panel. I can only find them in the section of files without key words. When I pull them up  I get a (File can not be found.) on all of them. I did not move them, at least I did not intend to move them, but thy are not accessible to someone with my limited skill set. Of course, I had to delete them to use my only memory card to update the camera firmware.Is it possible to recover these files? Or am I screwed? Can someone blessed with natural stupidity provide and answer? Thanks

The Lightroom Catalog now has a sidecar file called 'lrcat-data', which I understand stores data calculated from AI operations such as masking and denoise.   Since the denoise feature was updated to store the resulting data in the catalog instead of a DNG file, the size of lrcat-data has ballooned to unreasonable size for many users, myself included. Given we can only expect this to grow, Adobe needs to give us options to better manage this, such as manually or automatically deleting this data from the catalog similar to how previews are handled. If the data is needed again it can be recalculated or loaded from sidecar files (storing it in sidecar files is already supported). I expect this is already in the works.   But there is another issue which I don't think has been raised, which is that the lrcat-data files is structured as some sort of blob archive and, at least for me, is very very slow to copy. You can reproduce this by copying the file on to a fast external SSD, and

In LRC and ACR can’t apply Adaptive Color profile. In LRC nothing happened in preview (no image change, but when copying settings form earlier images that used this setting you get error information  “Failed to apply adjustment to following photos. An unexpected error occurred while processing. (1)” then name of image.In ACR I got “Could not update all AI Settings” error.It worked on v.14.x version and older ARC. Also if Adaptive Profile was applied it is still possible to edit this image correctly.Strangely didn’t found problems with other AI features (masking, de-noise, depth blur, etc), that seem more AI heavy. My config:Lightroom Classic version: 15.3.1 [ 202605261338-e36f8566 ]License: Creative CloudLanguage setting: en-PLOperating system: Mac OS 15Version: 15.7.7 [24G720]Application architecture: x64Logical processor count: 8Processor speed: 2,0GHzSqLite Version: 3.36.0Adobe GSDK Version: 1.4.0.213Power Source: Plugged In, 100%Built-in memory: 16 384,0 MBDedicated GPU memory used

Greetings, I've created a collection on lighroom classic to sync with Lighroom cloud based. Lightroom classic “syncs” the photos but the photos do not appear on the created collection on LCC. Lightroom classic seems to have completed the sync, but when I review the sync activity log the photos are “uploading”. I've tried the “rebuild sync data” with no results. Also, I've looked into the sync status on web and no issues have been logged. Any help would be greatly appreciated.

Lightroom Classic 15.1.1 on MacOSX with 56,000 images.I have been using LRC facial recognition for years, with photos from a variety of different ages and camera sources. A few years ago, LRC was very good at identifying people even as they aged or from unusual angles. This behaviour has noticeably downgraded in 2025/2026. Faces are being shown as ‘unnamed’ even though they are of people who already have 5,000 previously identified examples.Previously, at load time, almost all new faces were being named, even if some of the identifications were incorrect. Currently, almost all new faces are unnamed. It has become so uncommon that I am surprised when occasionally my own face is correctly identified.Has there been a change in the algorithm, and if not, is there something that I can do to get the naming function to work properly again in my installation? I have tried ‘Find Faces Again’ but it just redraws the face region without making a better identification. 

ライブラリ、および現像モジュールで、左右キーを使って前後の写真に移動しても、表示される写真が変わらない。サムネイルで選択されている写真は正しく移っているが、写真が読み込まれていない。

The export button is grayed out.

I haven’t had trouble before now using the denoise feature. Whenever I toggle it on, it starts to work and then it tells me this. How do I fix this? I have updated the app, closed it, and reopened it and it still does not work.

I have the latest version of Lightroom Classic on my Windows PC. It was working fine last night but today it won’t open. It produced 3 separate error messages saying that the code execution cannot proceed because ahclient.dll (and two other files it also lists) was not found. It says reinstalling the program may fix this problem. Has anyone else has this issue please and why is it happening?

I have a large number of the attached files in one of my picture folders. I have not found way to open them or determine if these file have any use. I have tried a Json formatter Plus with no results. I do not want to just delete the files if they are useful.

la correction d’objectif ne s’effectue pas automatiquement lors de l’importation des fichiers : avec le Z8 le 24-120 f4 nikon n’est pas reconnu automatiquement ainsi que le viltrox 35 f1.2 lab alors qu’ils sont tous les 2 dans la base de donnée.le nikkor 70-200 f2.8 en monture F est lui parfaitement corrigé automatiquement à l’importation.comment faire?

AI masks are behaving normally and display beautifully in the Develop Module, but they are failing to show in the Library Module or export at all. If anything, they’re making the images worse than the unedited version. I have tried updating LR, updating my operating system, turning off the GPU, clearing the AI cache, clearing the camera raw cache, rebuilding previews, deleting the previews file from the catalog folder, and any other fix I can find on the internet. I am on a tight deadline for a client, this is a catastrophe.

After upgrading Lightroom Classic to latest version I cannot see or access my edited TIFF files? I can see all my raw folders and the photos contained within. Where I have used a plug in and the files come back as edited TIFF, these have disappeared. I have tried to restore from back ups but cannot get this to work 

Good evening,I used the reflection removal tool for the first time today on a RAW file and when it finished the process I was left with the attached ‘image’.Any thoughts, or preferably solutions, would be much appreciated.Thank you.Mark

Is it safe to eject my memory card while only converting to .dng during importation?

while editing in LRC .. if I have selected an image to edit with the sliiders  and finish.. the image disappears and the screen says ‘No image selected..no work around that I have found soles this.. i am a 20+ year user ...this is happing in the Tahoe upgrade help not getting any work done!

When creating a new Lightroom classic catalog the images do not preview. I have to quit Lightroom altogether, then reopen the catalog in order to see them. This has been going on for months.

I’m experiencing a recurring problem with Lightroom Classic (v15.3) on macOS, running on a MacBook M5 Max with approximately 2.5 TB of free disk space. I haven’t encountered this issue prior to version 15.3, although I’m not certain if it is directly related.SymptomsLightroom opens the catalog, but: spinning beachball appears frequently images can sometimes be selected, but no zoom previews remain blank or don’t load UI is partially responsive, but core functionality is blocked Replacing the catalog with a backup does not fix the issue Deleting Previews.lrdata also no effect Deleting .lock, .wal, .shm has no effect Initially, a full system restart resolved the issue. However, the problem has now progressed to a point where even restarting macOS no longer fixes it. Lightroom still opens in the same unusable state (beachball, no zoom, missing previews).When the issue occured:No Lightroom process is visible anymore in Activity Monitor However, Lightroom still behaves as if something is

When I open a Lightroom catalog in LR classic (version 15.3.1), the histograms and 1:1 previews of the images won't load. When I try to do anything, Lightroom will freeze and crash and I'll have to force quit. I’m using a Macbook Pro updated to Tahoe 26.5.1, I've cleared video and RAW caches, cleared preferences, shut off GPU, checked the integrity of the catalogs, optimized them, uninstalled and reinstalled LR, and restarted my computer.

I figured this out but thought I would post it...might be helpful.I opened 3 images from Lr Classic to Photoshop (current versions)I edited them and used the Export As command to create a high quality JPG to be used as a print master I then imported those jpgs into my Lr Catalog and forgot Ps was even running. When I went back to Lr, they showed as my Previous Imports… But they were not able to be found in the Library module. There enclosing folder couldn’t be found either! After syncing and trying to figure it out I decided to optimize, quit, restart and realized the  original files were still open in Ps After quitting Ps they issue disappeared.Odd, huh?  

I started using Loupedeck CT with Lightroom Classic. It boosts the workflow. While using it, whenever I change a setting, on the screen there appears an indicator that says which setting is being handled. Is there a way to also indicate or show a progress bar by how much it is changed (value)? It would be super helpful as I don’t want to all the time have to scroll the right bar to find the setting that I am currently changing. Thanks a lot for your help!

Non capisco, ho importato le foto come al solito ma dopo averle modificate tornando in gallerie mi compare un punto esclamativo nero. Il messaggio riporta che sono stati rilevati dei problemi da Lightroom durante la lettura di questa foto. Non sarà possibile effettuare regolazioni sulla foto. Ma la foto inizialmente era modificabile. Ho rimosso la foto dal catalogo e importata di nuovo. Funziona ma poi tornando in galleria stesso problema. Anche altre foto hanno lo stesso problema. E’ la prima volta che mi capita in tanti anni.