Re-creating the catalog is not necessary, as I explained, you have to find the proper catalog file on your computer's hard disks or SSDs, and then open/upgrade that exact file. ... View more

Lightroom Classic has accidentally upgraded the wrong catalog. You need to find the proper catalog on your hard disk, and then upgrade that catalog. You can use your operating system's search feature to find all files on all disks whose name ends with .LRCAT and then open each one found until you open the catalog you want. Probably each of these catalogs will have to be upgraded to LrC 15 when you try to open each one. The type of disk (SSD) is irrelevant. ... View more

Most likely the wrong catalog file was upgraded. So ... reinstalling LrC will not solve the problem.   Try File->Open Recent and see if any of those catalogs show the images you want. If not, search your hard disk(s) using your operating system's search feature to find all files whose name ends with .LRCAT and then open each one until you find the catalog you want. ... View more

Mr. Bremeault: Regarding the 10000 word answer, this is a public forum, and anyone can say whatever they want within the forum rules, even if you don't agree and even if you don't like it. Regarding the rest of your comments, it is now extremely obvious that you just want to complain. Complaining is really not the purpose of this forum, the purpose is to help other people who have problems running Lightroom Classic and to learn, that's why I come to this forum, and so I will drop out of this thread now, and I suggest to others to do the same. ... View more

First, I think you are using Lightroom Classic and not Lightroom. Next, I'm pretty sure you are talking about duplicated disk drives rather than duplicated folders (drive named Images appears twice).   See this: https://helpx.adobe.com/lightroom-classic/kb/lightroom-displays-same-hard-drive-twice.html   Next, the "Images" folder appears under the "Images" drive, this doesn't correspond to your actual folder hierarchy. So there are probably two things going on. This can be fixed thusly: https://www.lightroomqueen.com/capitalization-catalog-error/ ... View more

What version NUMBER of Lightroom Classic? Please tell us the version NUMBER and not words like "latest" or "Up-to-date".   Please make sure you have the most recent GPU driver installed, and that it is a Studio driver and not a Game-Ready driver. ... View more

First thing to try is to make sure you have installed the most current GPU driver.   If that doesn't work, you are working with an 8 year old GPU, and it may be that this old GPU cannot handle the task properly. ... View more

In windows, change the new computer's D drive to the E drive. Probably things will work properly when you do that. ... View more

Reboot means your computer has frozen, not LrC. This happens because either you have a bad driver somewhere, or a hardware malfunction somewhere. Reinstall the latest version of your graphics driver, and make sure it is the Studio driver and not the Game Ready driver. If that doesn't work, you will probably have to start checking your hardware for malfunctions. ... View more

Deletion from the hard drive is done via operating system calls. If you have a huge number of files in a single folder (not counting in subfolders), that will impact the performance of deleting files (and any other file operations). If your disk is close to 100% full, that could impact speed as well.   Deletion from the catalog can take a long time depending on many factors, including when the catalog was last optimized.   Have you tried to delete approximately 1700 files before the upgrade? How long did it take then? ... View more

Translation to English:   when sharing the catalogs, the other party cannot associate the photos   Please explain this in a lot more detail.   How are you sharing the catalogs? What are the exact steps? What does "cannot associate the photos" mean? What steps did you follow to "associate the photos"? Please show us screen captures of the problem, by using the "Insert Photos" icon to include your screen captures in your reply. Do NOT attach files.   What version NUMBER of Lightroom Classic are you using? (We need the version NUMBER and not words like "latest" or "up-to-date"). What version NUMBER of Lightroom CLassic are the other people using? (We need the version NUMBER and not words like "latest" or "up-to-date"). ... View more

Please try the method stated by @Johan_Elzenga here: https://community.adobe.com/t5/lightroom-classic-discussions/problem-with-quot-back-up-quot-in-lightroom/m-p/15567854#M416576   OOOPS: This is exactly what @Sameer K suggested ... View more

I noticed a serious change in the dark areas after my latest upgrade to version 15.  It is then necessary to adjust the glider again to a neutral level.  I this normal after upgrading the version? By @HansvanHaren   No it is not normal, and I am not experiencing this issue.   Can you show us a screen capture of the image before the upgrade, and then after the upgrade? Please use the "Insert Photos" icon to include your screen captures in your reply. Do NOT attach files. Also, please tell us if the sliders are in the same position before the upgrade and after the upgrade.   Occasionally, people find that LrC has upgraded the WRONG catalog file. Could that have happened here? ... View more

So I should stop to pay 18€/month to run obsolete Adobe apps. By @Franck BREMEAULT   That's your choice to make. Do what makes you happy. ... View more

Adobe said there was a problem and replaced my later version of Lightroom Classic with a much older one.    Give us the details. Explain in a lot more detail so we can understand your problem.   In addition we need to know what was the version number you had, and what did they give you?      ... View more

I think @KR Seals has a very good thought on this matter. What he said is more likely the reason than LrC upgrade lost one collection set out of the entire catalog. ... View more

Impossible? What happens? Explain in detail. With that information, maybe someone here can help.   Don't pay for it if you don't want it. ... View more

the outcome could be more realistic  - rick adobemax2025 By @MAX2025_User1_Ideas   The information provided could be more useful. ... View more

I am skeptical that the upgrade process would lose one collection set but nothing else.   However, first you have to find the collection set in earlier catalogs. Then you should be able to transfer the individual collections to the new catalog. In the old catalog right-click on a collection and selecting Export this Collection as a Catalog, then import this catalog into your new catalog. ... View more

Using the curve feature with a brush is in no way the same problem that started this thread. And yes, the original problem was a corrupted file. ... View more

I'm about to lose my freaking mind.  LRC forced me to upgrade my catalog, now I can't re-open my old one.  Do not have access to any of my work.  Please advise ASAP.  TIA By @schinigo   To both @schinigo and @sarabt98 , we need information if we are going to help you. And I think you should know that your old catalog is still out there on your hard disk, with all of your work in it. It hasn't disappeared or changed.   Why do you need the old catalog file? Please explain.   What happens when you try to re-open the old one? Explain in detail. If there is an error message, what is the exact word-for-word error message? ... View more

I've been getting a similar problem, Just now I edited three files. Two of them had this issue. I had done very little editing in v14.5. looking in more detail, I think I have narrowed this down to having used the curve feature with the brush. I experimented with two further files. The brush alone was fine. The brush with the cuve caused the issueagain. Adobe, please fix this. By @Julian26615562wt19   Please submit a proper bug report, following these instructions: https://community.adobe.com/t5/lightroom-classic-bugs/p-how-do-i-write-a-bug-report/idi-p/12386373.   Also, it is not correct to say you have a "similar" problem as the thread is about problems reading a photo. In the future you would want to start a new thread with your problem. ... View more

    yes it is,Thanks for your answer.!Frank Reding By @frankr60412859 In addition, please answer my questions above. ... View more

Did you re-import your images?   Did you accidentally open the wrong catalog file? ... View more

You could revert back to LrC 14.5.1   Isn't it Mac OS 15.6.1 and not iOS 15.6.1? I don't think LrC runs on iOS. Or are you having a problem on a mobile device? ... View more

In my understanding of the problem, Ctrl-S cannot cause this. However using the equivalent menu command might cause this if you accidentally select the item below "Save Metadata to File", which is "Read Metadata from File". We all have clicked on the wrong thing from time to time. But your statements are clear, you don't use the menus. So none of what you describe leads me to a potential solution, and now certainly your latest description of the problem increases my belief that I was nowhere close to figuring out the cause or solution.   It is still my belief that Lightroom Classic does not change the edits on your photos by itself. But I have no idea what the cause is. ... View more

Answered in this thread: https://community.adobe.com/t5/lightroom-classic-discussions/why-does-moving-a-file-on-disk-cause-previous-to-become-permanent/td-p/9879777 ... View more

Translation to English:   Lightroom  refuses to open these images in another application.   I restarted the computer and currently all the photos can no longer be opened.   So I assume that this means your catalog itself was working and you could edit in Lightroom Classic (not Lightroom as you said). But you didn't say this. Is my assumption correct?   After you restarted the computer, you said all the photos can no longer be opened, do you mean that now Lightroom Classic cannot edit the photos? Or do you mean that you still can't open the photos in the external applications such as Topaz? If so, you need to explain in detail exactly what happens when you try. (And also, what do you mean by "open", as LrC does not "open" photos) Are there exclamation point icons on your photos as shown in Figure 2 here? Are there question mark icons on your folders as shown in Figure 3 at the same link? ... View more

Hey @Paul_Gringo    Johan said: "You need to be more specific. Instead of just posting a rant, explain what you are doing. Give version numbers, file types, etc"   You didn't do any explaining as he asked. You didn't tell us what file type you are using or your OS version number.   In addition, I am requesting the following:   We need to see a screen capture of the original zoomed 1:1 so we can see the noise level of the original photos, and we need to see a screen capture of the same photo after you run AI Denoise zoomed 1:1. We don't want that tiny thumbnail in the DeNoise section, the images in Loupe mode zoomed 1:1.   And we don't want more rants. Thank you. ... View more

So let me make sure I understand what you are saying. Your original message said "Lightroom is Catalog-v13-3.zip damaged" and now you have left out the .zip part. So please confirm that you have unzipped the catalog file and it still won't open.   You can always open other catalogs from either your operating system (by double-clicking on the catalog file); or when you launch LrC via holding down the option key (Mac) or the control key (Windows). ... View more