Lightroom Classic

I am setting up a lab of 30 laptops for a high school art class. The teacher has requested Lightroom Classic, which is the only one we have with Adobe Creative Cloud licensing (shared-device licensing). I understand that this operates using a SQLite database so running on network drives is not possible. However, we do not allow our student accounts to access the local drive on devices they log into, so they aren’t able to create local catalogs.I’ve been toying with a script to essentially run LrC out of a scratch folder in C:\ProgramData\, uploading their files to their network drive on LrC closing, and pulling those files back down into the scratch folder on LrC startup. I’m not sure this is the best way to do things, as it really can’t elegantly handle multiple catalogs and can’t account for student behaviors such as logging off before closing the program, or changing the name of their catalog.Any advice at all for how to deploy this would be greatly appreciated. Even if the advice i

In develop module, even if idle, the CPU usage is 60-85% at all times, what causes the browser to slow down and the entire system slows down. As soon I switch to Library, CPU usage returns to minimal. As soon I return to Develop, the CPU jumps back up, even listening to a video in 720p is not possible. Browser chokes for seconds, frames freeze and skip. I run W11 Pro 26H2, OS Build is current 26300.9711The hardware is a Dell 5820 with:Processor    Intel(R) Xeon(R) W-2223 CPU @ 3.60GHz (3.60 GHz)Installed RAM    48.0 GB (47.7 GB usable)Graphics card    NVIDIA RTX PRO 2000 Blackwell (16 GB)Storage    11.06 TB of 22.32 TB usedSystem type    64-bit operating system, x64-based processor  

I experience sync issues in Lightroom Classic for some photos when I add them to a Collection that is synched to the cloud. Only photos that contain Generative AI remove operations are affected. The photos were edited before attempting to add them to a synched collection.I am running Lightroom Classic 15.5.1 on an M4 Pro Mac mini that runs MacOS 26.7.I have found a partial workaround, but it is slow and time consuming. The affected photos appear in the Sync Errors group in the Catalog area at the top of the LH panel. For each of the affected photos, I have to regenerate all of the Removal objects to completely regenerate the data; I have to select each removal object individually to regenerate because there is no bulk operation for a photo. On some photos this may additionally have consequences for masks and I often have to also refresh the masks.Regenerating the AI removal objects does not by itself immediately fix the sync - Lightroom remains stuck. For the sync to complete, I need t

I had a Windows 11 Laptop which failed. I decided to go Mac when buying a replacement.I rocovered the Catalogues and the like off the Windows 11 laptop and moved to my Mac and the main root Catalgue works fine.The problem is I have is that on the windows machine i moved photos to a NAS. These are what I cannit acces now on the Mac. I get an Invalid Path error.As I understand it the problem arises with the “path” being in windows format (UNC) rather than Mac format.Is there a fix for this as I don not want to try and remap NAS folder so to speak.

Hi everyone! I’m switching from Canon to Sony.Lightroom Classic offers Camera Matching profiles for the Sony A1, but not for the A7 V, and my RAW files just don’t look good without them.Does anyone have any ideas on how to improve the colors and skin tones while waiting for Adobe to add Camera Matching profiles for the A7 V?Any tips or workarounds would be greatly appreciated!

Hello,I'm attaching the warning I get and let's see if anyone can think of what may be happening. I use Lightroom to save, classify and edit my photos. It's been a week since I saw for the first time the screenshot that I put in which it says: Lightroom has encountered problems when reading this photograph.You will not be able to make adjustments to the photograph. When marking them one by one to see what they had in common I have found that it happens to me only with t The photos taken with the M11-POnly the DNG and when I shoot RAW + JPG the notice never comes out in the JPG and if in the RAW.They are also photos that have been edited.I have seen that an unedited photo when editing it even if it was just cutting, then I got that warning But it doesn't happen to me with all of them... it only happens with some imports. That is to say, photos that I have taken on a trip and that have been imported all together they come out. I have checked the lenses and it comes out with all the ones

J'ai des problèmes de synchros sur LRC sur des photos avec beaucoup de calques. Il n'envoie pas tout dans le cloud (ce alors que je suis en vert la liste est vide), quand je récupère sur Lightroom mobile il en manque régulièrement je dois jouer avec l'historique des versions pour retrouver la dernière.Tout est en dernière version et je n’ai pas de problème signalé dans Lightroom web.

Lightroom Classic is crashing when trying to select the background mask tool.

hice actualización de la versión de LrC    ultima y cuando utilizo herramientas como eliminación de ruido, mascaras, aparece una ventana de error y se cierra  el programa, regrese a la anterior y el problema sigue. regrese a la versión 15.6 el problema sigue, parece que cuando se conecta con la nube surge el problema.

This happens in all “local edit” modes, such as brushes, gradients, “select subject” etc.In these tools, the “white” and “black” sliders behave weirdly, almost as they are editing a jpg. There is no latitude in the edit, even though it’s there in the original file: the same sliders, in the full image mode, work perfectly fine. it’s much quicker to provide an example so I’ll attach screenshots.https://imgur.com/a/rXdu48p (uploader not working today... I used imgur then) as you can tell, in the screenshots on the right i can pull whites to recover sun spots, and push blacks to recover detail in the furniture. on the left, doing the very same edit with brushes, both whites and blacks are severely clipped.  this has been happening forever, I’d love to see it fixed especially for recovering sun spots.

Depuis hier les modèle IA ne charge plusJ’ai désinstallé puis re installé LRC sans succès.. En mode ADM pareilCi-desous le log correspondantQue faut il faire ?Report link

Lightroom Classic 15.6 – Both monitors go black during AI Reflection Removal processing (Best Quality, RTX 4090)Issue DescriptionI'm experiencing a critical issue with Adobe Lightroom Classic 15.6 when using the AI-powered Reflection Removal feature.After activating Reflection Removal with the processing quality set to Best, Lightroom begins processing the image and displays the green progress bar.However, shortly after processing starts, both connected monitors suddenly turn completely black.The computer remains powered on: the system fans continue spinning, and the LEDs on the motherboard and NVIDIA GeForce RTX 4090 remain illuminated.Neither monitor recovers automatically, and I have to restart the computer to restore display output.Steps to Reproduce Launch Adobe Lightroom Classic 15.6. Open an image in the Develop module. Enable the AI-powered Reflection Removal feature. Set the processing quality to Best. Start processing the image. Lightroom displays the green progress

Whenever I try to apply a preset, any preset, this message pops up. “Downloading AI ModelsSome AI Models are downloading. Please try again later.”There’s nothing wrong with my internet, or disk space or anything really. It literally just started happening after an update I did (v15.3.1). I’ve uninstalled, reinstalled a few times, same thing. I can’t apply any preset, but lightroom can still function properly as normal. Can anyone help? 

You have issues with your latest LrC update.  Also with this webpage as it just trashed my last attempt to report these bugs. Please fix this webpage! These issues, which never occurred before your last update now occur EVERY TIME I use my normal workflow.That workflow:  Import my raw NEF file Enter “Develop” Use the <File><Plug-in Extras><Process with Topaz Photo (Studio) Let Topaz run its automatic noise reduction and, optionally do some other stuff such as sharpen (but not required to reproduce the bugs described below) Return the denoised DNG file from Topaz back to LrC and enter Develop module Attempt to enter masking.  DOES NOT WORK. Change Profile from the default “Camera AUTO” to “Adaptive Color”.  Now I can enter masking.  But… Subject masking DOES NOT WORK.  When I attempt it, the masking subwindow pops up and immediately disappears.  Object masking works and I am forced to use it to get my work done. Once I’m done, I go to export my photo.  I get the normal po

Before updating to LRC 15 last week I routinely blitzed through bulk HDR merges of dozens of images in just a few minutes, as well as other dng processing/import from DXO Pure Raw, and now these tasks are taking an exorbitant amount of time to complete. This is destryong my work flow at a critical time for my clients. Any help is greatly appreciated... thanks!   System info here: Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]License: Creative CloudLanguage setting: en-USOperating system: Mac OS 15Version: 15.6.1 [24G90]Application architecture: arm64Logical processor count: 14Processor speed: NASqLite Version: 3.36.0Adobe GSDK Version: 1.4.0.171 Power Source: Plugged In, 100%Built-in memory: 36,864.0 MBDedicated GPU memory used by Lightroom: 2,498.5MB / 27,648.0MB (9%)Real memory available to Lightroom: 36,864.0 MBReal memory used by Lightroom: 6,523.8 MB (17.6%)Virtual memory used by Lightroom: 428,469.5 MBMemory cache size: 3,749.5MBInternal Camera Raw version: 18.0