Lightroom Classic

LrC v15.4.1 Windows-11:   I am trying the Auto-Stack ‘by Visual similarity’ on a folder of images with many images I consider similar. Why am I getting the message- “Current slider settings doesn’t allow Auto-stacking”? and the [Stack] button is greyed out. Although the previews suggest that stacks will be created. This message appears for any position of the slider- except for the far right end when [Stack] appears but result is “0 stacks,...”Something I am missing? 

some of these files date back several years.  How do I best manage them and how do I free up disc space?

라이트룸을 실행할때마다 한번에 이상없이 실행하지 못하고 몇 번이고 응답없음 상태가 되어 강제종료 후에 재실행하기를 반복해야 간신히 실행 됩니다.뭐가 문제인지 모르겠습니다.PC는 포맷 후 윈도우11을 설치한지 2주 정도 된 거 같습니다. 

Year ago I disconnected from LAN my Win 7 computer where LR 6 classic was installed.Now I wish to install LR 6.14 Classic on new Win 11 computer. After running 6.14 installation file and entering LR serial, Adobe account login is required but LR still doesn’t start. When I login to lisencing I see there my registered LR license but can’t figure out how to use it. I need LR classic as photo library only. Any suggestions, how to run installed LR classic?

Problem: LrC 15.4.1 - Receive “Lightroom has encountered an issue updating AI edits” & “unable to backup catalog error” after migrating catalog from Windows 10 to Windows 11.  =============== Background: Problems started when I moved LrC catalog/workflow from a windows 10 machine to a windows 11 machine. Backed up entire C drive from W10 PC to external hard drive (included the then-used LrC catalog). Signed out of all adobe apps on old machine before doing a “fresh”/”clean” install of Windows 11 to C drive. Kept all jpg/raw originals on F Drive, which on second catalog import attempt, had no issues on Windows 11.  Migration Attempt 1 (Failed, Abandoned): After Windows 11 install, and LrC install, tried to open old catalog from Windows 10 and could not get it to boot properly. Tried to copy the Catalog from old Windows 10 C drive (external) to new Windows 11 C drive (internal) --- Alt+Open LrC and selecting the copied old catalog led to: missing files, missing edit info, and AI Edit

When opening it shows a box.  “Lightroom has encountered  issue updating AI edits.  Future AI edits may not be saved and could be lost.  Please contact Adobe customer support for trouble shooting.click open recent under catelog the only catelog that comes up is LR catalog.Ircat. Under Manage Catalog, it shows LR catalog.Ircat is located under One Drive.  That is not one of my catalogs and I do not use One Drive.  It gives a choice to Remove All which I haven’t done yet.

The application refuses to launch on my macbook. Nothing happens when I click the icon. I have tried everything to try and launch the app but thing works. 

In Lightroom 15.4.1:Open Image with blue sky Generate a virtual copy Set copy to B&W in Basic panel. Sky retains a blue tint. Adjusting blue tones in B&W mix panel deepens or lightens tint but retains the blue colour. This also happens when using B&W preset such as InfraredNOTE: In further testing, I have only found this behaviour in two images which have been edited in Photoshop and saved at TIFF. 

I have Lightroom classic 15.4.1 .  I used the find duplicates application to create stacks of  duplicate photos.  The stacks of duplicate photos were displayed.   I then selected the option to remove duplicate photos from the hard drive.   Now it would appear that the "duplicate application" has become unresponsive.  "No duplicates found " is shown on the main Lightroom screen. In addition the photo catalogue is no longer connected to Lightroom.  The thumbnail of the Picture file has a small black/grey exclamation mark by it.    My photos are still all on the computer’s hard drive.     HELP !   How to I return Lightroom to its usual state and reconnect it to the photo catalogue?

I am trying to make a print to fit the dimensions of a mat I have already cut. In Page Setup I set the paper for 13 x 19 Landscape, and set the Cell Size in Print module at 9.3 x 13.32, which is slightly larger than the mat opening. However the finished print measures slightly under 9 x 13. I am printing to an Epson ET-8550 printer. I have been printing lots of 7.5” x 10” prints on 8.5 x 11 paper and they come out the exact dimension as expected.

Lightroom Classic 15.4.1 on Windows 11 desktop PC with HDR display enabled. In Develop mode, DNG image is adjusted using AI Sky Mask to adjust hue of sky. Develop renders correctly and the exported image renders correctly. However Library Loupe and Library Full Screen regenerate a preview with a green fringe or halo in the sky along the sky/land boundary. When switching to Library you can observe Library displaying the previous preview, then the correct Develop render, then replacing it with the incorrect regenerated preview. Reproducible on a fresh HDR merge and on separate DNG files. The bug appears to be related to the setting on the exposure slider in masking, appearing with higher exposures and disappearing with lower exposures.

Hi Adobe Team, I’m posting this as a clear performance regression report for Lightroom Classic v15.x — specifically the Develop module image-to-image switching latency on Mac. REALLY SLOW. Please do not merge this thread into a generic “performance” megathread and then mark it as “Solved” as if nothing happened. Multiple users are reporting the same behaviour, and it deserves a proper investigation and acknowledgement (instead of being dismissed as an “NVIDIA driver” issue — this is Apple Silicon). What’s happening On Lightroom Classic v15.2, switching between photos in Develop is several times slower than in previous versions. This is not a minor “feels slower” issue — it’s a real, repeatable regression that drastically impacts professional workflows. My setup  MacBook Pro (M3 Max) macOS v26.2 Lightroom Classic v15.2 Preferences → Performance → Graphics Processor: ALL acceleration options manually enabled (not Auto)  Proof / Reproduction To remove any subjectivity, I recorded sc

I was enjoying myself until two days ago when I upgraded LR Classic to 15.4.1 (which created a new catalogue). Since then it has been a world of pain.It works fine for a little while. After some time, I realise that none of the titles, captions and keywords I’ve been entering for 15 minutes is being registered. Seems fine while I’m typing them, keyword suggestions would come up, and no warning when I press Enter. But when I return to them, they are all blank. LR frequently freezes, requiring me to shut the program every half an hour or so. Shutting the program takes many minutes (spinning rainbow wheel). Often after shutting the program, I cannot open it again (icon bounces in the Dock for a bit, then nothing happens, not even a start screen). I need to restart my computer.Any suggested fixes? Or should I downgrade to the previous version of LR Classic (if that is even possible)?  My specs are:Lightroom Classic 15.4.1 MacBook Pro with M1  OS = Tahoe 26.5.2 16 GM memory 880 GB of disk s

Hi there, I’ve been struggling with a recurring bug in Lightroom Classic (v14.3.1) related to the AI-based Remove tool and the “Update AI Settings” prompt. Here’s what’s happening: I’ll use the Remove tool on an image and allow it to finish processing.I’ll then move to another image and continue editing.When I return to the original image a few minutes later, the removed object has reappeared.A triangle with an exclamation point shows up, prompting me to “Update AI Settings” — even though I’ve already done this previously.This cycle keeps repeating, and edits don’t stick.     What I’ve tried (and confirmed):  I’m running Lightroom Classic v14.3.1 on Windows 11.GPU settings are set to “Auto”, but I also tried manually enabling full GPU acceleration.I’ve restarted Lightroom, reinstalled Lightroom, and even paused cloud syncing.I’ve waited for the AI edit to finish before moving to another image.I cleared the masking cache by deleting the Helpe

Hello, Community.   I'm a photography hobbyist who chases the aurora. Novice-level LRC user. Mostly illiterate when it comes to the details of monitors/sRGB color space.  You guys will be lightyears ahead of me in technical acumen, but I’m hoping you will be able to point me to on-line resources or provide “Dummies” level info to help me understand the image discrepancy I find between the RAW image and what I import into LRC.  Currently working on an older MAC (newer more robust MAC sitting here waiting to be unpacked).   When I started post-processing RAW image from my 2026 aurora trip I immediately noticed a SIGNIFICANT difference between the intensity of the RAW image colors (MAC Preview app) compared to the image imported into LRC Develop module. (both displayed on 5-6 year-old DELL monitor, with same discrepancy seen on husband’s newer DELL monitor)   LRC import images are 1:1.   Is it my monitor settings?  Any information or resources for a novice LRC user to help me understand w

Boy, do I need help! I'm 87 years old. I'm loosing my ability to use Adobe products, but want desperately to complete uploading my You Tube channel and need to use Adobe. I live in Kalamazoo, MI. Will some one out there help me over this hump? 

Meine KI preset Maske wird teilweise nicht übernommen. Im Raster Entwickeln ist mein bearbeitetes Bild wie ich es haben möchte - sobald ich in die Bibliothek umschalte ist die Maske weg und somit der Bildlook ganz anders. Auch beim export ist die Maske nicht drauf!

In my Lightroom Classic (15.4.1), the icon for each layer mask located next to the mask name has disappeared. Previously, each mask had an eye icon and I could click on the eye which would turn off the mask visibility and change the eye icon to an eye with a slash through it.  Now there is just a dark gray area with no eye. The only way to turn a mask on or off is to control click on the mask and select hide which is clunky. Is there a hidden setting that will restore the eye icon? Thanks