"Graphics processor acceleration is not supported by your system."   1. In Windows Device Manager, triple-check the Nvidia GPU is still enabled.   2. Try deleting the file "Camera Raw GPU Config.txt" as detailed here: https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html#solution-3 That will cause LR to reevaluate the capabilities of your GPU. 3. Delete any TempDisableGPU2 and TempDisableGPU3 files: https://helpx.adobe.com/camera-raw/kb/acr-gpu-faq.html#6CheckanddeletetheTempDisableGPU3orTempDisableGPU2files   3. Go to Preferences > Performance > Camera Raw to verify that Use Graphics Processor is set to Auto.   4. If it's not, do Help > System Info and copy/paste the entire output here. ... View more

"I clicked the "System Info" button and got this: Unexpected error performing command: 7:0: attempt to perform arithmetic on a nil value"   This bug was introduced in LR 15.0 and fixed in 15.0.1: https://community.adobe.com/t5/lightroom-classic-bugs/p-lrc-v15-system-info-error-unexpected-error-performing-command-0-attempt/idi-p/15570006   So as a first step, update to LR 15.0.1. ... View more

Moderators, @Rikk Flohr: Photography, please merge with this existing thread: https://community.adobe.com/t5/lightroom-classic-discussions/p-failed-to-initialize-ai-edits-storage/m-p/15577284   @Ruth22785943xt0s, that thread describes a workaround that's helped some. ... View more

Share a sample raw with the problem here, and we can see if the issue is specific to your computer or occurs on other installations. If the forum won't let you attach the file here, upload it to Wetransfer, Dropbox, Google Drive or similar free service and post the sharing link here.  ... View more

That's good news for you and possibly encouraging that ChatGPT may be getting better at technical advice. AI bots often give garbled instructions for more technical issues, and it can be hard to tell what parts are wrong, given the bots always speak with an authoritative voice. ... View more

Excellent.   To help others who might have similar symptoms, could you provide details on how you (or Adobe support) repaired the catalog? ... View more

While waiting for Adobe to implement this, the Auto Stack command of the Any Source plugin provides a lot more flexibility in stacking, including time gaps as little as 0.08 seconds. ... View more

Lots of complaints here about sluggishness in LR 15, and there are probably multiple causes. I don't know which magic spells you've tried, but here's a list of ones that have helped some others. Restart your computer after trying each step:   - Try updating your graphics driver by going directly to the manufacturer's web site, rather than relying on Windows Update or a manufacturer's update utility: https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html#solution-4 - In Preferences > Performance, set: . Use Graphics Processor: Custom (rather than Auto) . Check Use GPU For Display, Use GPU For Image Processing, and Use GPU For Export . Use GPU for Preview Generation: On (rather than Auto) - Make sure you catalog folder is not being synced to a cloud service like Google Drive, Onedrive, Dropbox, Icloud. - Set Preferences > Performance > Enable HDR in Library to On. A year or so ago, that helped with sluggish filmstrips, though I don't recall recent reports about it. But it's harmless. - Do File > Optimize Catalog. - Temporarily disable all anti-malware / anti-virus packages, including Windows Defender. If that helps, then add exclusions for the catalog folder and all photo folders. - Disable Catalog Settings > Automatically Write Changes Into XMP. - Disable the options Catalog Settings > Metadata > Automatically Detect Faces, > Analyze Photos Of Selected Source, and > Automatically Analyze All Photos In Catalog. - Try resetting LR's preferences: https://www.lightroomqueen.com/articles-page/how-do-i-reset-lightrooms-preferences/ LR sometimes soils its preferences file, and resetting it can fix all sorts of wonky behavior. That article explains how to restore the old preferences if resetting doesn't help. - Do Preferences > Performance > Camera Raw Cache Settings > Purge Cache. - Delete the entire preview cache by deleting <catalog>Previews.lrdata from the catalog folder. LR will rebuild them incrementally as you browse your library, or you can select all photos and let the command Library > Previews > Build Standard-Sized Previews run all night.     ... View more

[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]   "I did the above (and also made sure to test the Integrity of the catalog and Optimized the catalog).  It won't work.  I get the error message below:  Lightroom could not import this catalog because of an unknown error."   So indeed, this more strongly indicates your main catalog is corrupted.   You could try another workaround that often works in these cases:  In the main catalog, do File > Export As Catalog with none of the options at the bottom selected:     If that succeeds, open the exported catalog and test if it has the same problem.   If it doesn't succeed, then you can sometimes get Adobe to repair the catalog. But that requires potentially spending a long time with Adobe support before they'll submit the catalog internally for repair, which could be painful.   ... View more

@seethecolor: "I am suspecting that the Ircat.data file will continue to expand with each AI edit but it will not shrink if these edits are reversed or deleted."   The Denoise data will shrink if you do these steps to remove all references to the application of Denoise:   1. Delete all references to the Denoise setting from a photo, including its History steps by either: a. Deleting the photo from the catalog. b. Unchecking Denoise and doing Develop > Clear History to remove all history steps. c. Right-clicking the history step below the Denoise: On step and doing Clear History Above This Step.   2. Do File > Optimize Catalog. ... View more

@seethecolor, You've observed an average of 8.6 MB/photo added by Denoise to the .lrcat-data file, which is within the range of what others have observed. I measured a range of 5 - 56 MB/photo from a Sony a7 R3 (7952 x 5304). The size depended primarily on the amount of detail in the photo, not the ISO: https://www.lightroomqueen.com/community/threads/new-denoise-feature.52986/page-5#post-1355236   That per-photo data is duplicated in the .acr sidecars if you're saving metadata to disk.   You might add your constructive opinion and possible upvote to this feature request: https://community.adobe.com/t5/lightroom-classic-ideas/p-ai-blob-storage-size-should-be-limited-and-automatically-cleaned-up-like-previews/idi-p/15398085 ... View more

"the section above that says "Changed Existing Photos" and "Replace:  Metadata, etc" was greyed out and said "Nothing" so I was not able to select it."   That's to be expected -- the photos getting imported weren't in the new (empty) catalog, so there were none that had changed.   "I went forward importing only a few folders.  They worked fine.  Is there a way to completely new catalog with all the same photos/information?"   Do the procedure again, but this time select All Folders to bring in all the photos.  Then test again. ... View more

It does indicate the problem could be with the catalog, though it's not definitive.   You could create a "clean" duplicate of your main catalog with these steps:   1. Do File > New Catalog and open that new catalog.   2. Do File > Import From Another Catalog, browse to your main catalog, and use these options:   3. See if the problem occurs with this duplicate catalog. ... View more

Please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set. ... View more

@denisem59063945: "Yes, it gets stuck when I try to export it individually.  My work around was to try and find the picture on my phone and re-import it to see if that helps.  Sometimes it does, sometimes not.  Then when I try to export the whole folder again, another photo will do the same.  I've never had this issue before."   I don't recall hearing those precise symptoms before -- strange.   You could narrow down whether it's the catalog causing the issues: In LR, do File > New Catalog to create a test catalog. Then import a bunch of the problem photos from their current locations on your Mac, using the Import Add option (so they don't get copied or moved by importing).  Does the problem occur with the test catalog? ... View more

1. As a first step, please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.   2. For a particular photo that gets stuck, will it get stuck each time you try to export it individually?  Or does it eventually export? ... View more

@bjoern_wunderlich: "after a year, it could be implemented, right?"   I think in the past Adobe has sometimes revised / updated the camera-matching profiles long after support was first provided. ... View more

@Rikk Flohr: Photography, please consider moving to Bugs. ... View more

Also, thanks to @Barryvcns for a similar observation above. ... View more

In another thread, @jkborys observed that in LR 15.0.1, using the Remove tool breaks the display of Lens Blur settings in Develop for all photos regardless if they have Remove applied. A simple workaround is to type Q twice to open and close the Remove panel; alternatively, restart LR.  This bug probably accounts for many, if not most, of the reports here about Lens Blur in LR 15.   See this bug report: https://community.adobe.com/t5/lightroom-classic-discussions/using-the-remove-tool-stops-the-display-of-lens-blur-settings-in-develop-on-all-photos/m-p/15615771#M420352 ... View more

Also, thanks to @jkborys for the initial observation of the link with Remove. ... View more

@jkborys: "When I apply the lens blur affect, then switch to the remove tool to remove something that is not quite blurred out. When I leave the remove tool, the lens blur is not showing even though the apply checkbox is checked."   Thanks for that observation -- in LR 15.0.1, using the Remove tool breaks the display of Lens Blur settings in Develop for all photos regardless if they have Remove applied. A simple workaround is to type Q twice to open and close the Remove panel; alternatively, restart LR.  This bug probably accounts for many, if not most, of the reports here about Lens Blur in LR 15.   See this bug report: https://community.adobe.com/t5/lightroom-classic-discussions/using-the-remove-tool-stops-the-display-of-lens-blur-settings-in-develop-on-all-photos/m-p/15615771#M420352 ... View more

Using the Remove tool causes Lens Blur settings to stop displaying in Develop Loupe, for all photos. Typing Q twice (to open and close the Remove panel) or restarting LR fixes the problem.  This is obviously a LR 15.0 glitch in the logic that disables the display of lens blur while in the Remove panel -- the bug doesn't occur in LR 14.5.1.   Tested on LR 15.0.1 / Mac OS 15.7.1 and Windows 11. Steps to reproduce (also see the attached screen recording):   1. In Develop, Apply Lens Blur to a photo, adjusting the focus range and amount to be very noticeable.   2. Edit another photo.   3. Go to the Remove tool, uncheck Use Generative AI, and remove something from the photo.   4. Click the Remove button to close the Remove panel.   5. Go back to the first photo and observe that the previously applied lens blur is not displayed in the main Loupe view (incorrect) but is displayed in the Navigator window (correct).   6. Go to Library Loupe view and observe that the lens blur is displayed (correct).   7. Go back to Develop and observe lens blur is still not displayed.   8. Type Q twice to open and close the Remove panel. Observe that lens blur is now displayed in Develop Loupe (correct).       ... View more

@Bob Somrak, I'm not seeing the fractional seconds get truncated.  Here are the steps I took:   1. Select a raw with capture time with fractional seconds but file-created time having no fractional seconds.   2. Do Edit Capture Time to change the year.   3. Optionally, do Save Metadata To File, with or without Catalog Settings > Metata > Write Date Or Time Changes Into Proprietary Raw Files.   4. Do Metadata > Revert Capture Time To Original.   Are you doing different steps?   ... View more

[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]   Transform > Level normally levels the image by rotation and no other geometric transform, similar to the Crop tool's Auto. For example, original photo:   Crop > Auto:   Transform > Level: No warping.   Do you have an example of Transform > Level producing different results from Crop > Auto?   To copy Transform > Level to a batch of photos, recomputing the leveling angle for each photo, select just Upright Mode:       ... View more

Others have reported getting the most recent minor versions. Try Adobe help chat rather than speaking on the phone.  In LR, do the menu command Help > Lightroom Classic Help and click the chat bubble at the lower-right of the help page. Then type "agent" to connect to a human.  Try that several times.   ... View more

I still have LR 6 installed on my Windows 11 test machine along with LR Classic (currently 15.0.1).  I infrequently run LR 6 for the purposes of testing my plugins and haven't noticed any issues running it.  Before installing LR Classic, make a backup copy of the entire application folder, which on my system is:   C:\Program Files\Adobe\Adobe Lightroom   just in case the Creative Cloud desktop app removes it. It didn't years ago when I first installed the Creative Cloud, and it doesn't overwrite it now when I update LR Classic versions, but just to be safe... ... View more

I don't have any more suggestions, unfortunately. ... View more

My Sony doesn't record fractional seconds in the file creation dates of files it writes to the SD card. ... View more

@Bob Somrak: "ALL my files have zeros from my 5Dmk3 and R6mk2.  The odd thing is many of them show milliseconds in Lightroom Classic even though the have zeros"   The camera is recording fractional seconds in the EXIF capture date metadata.   But fractional seconds is getting dropped from the file's creation date somewhere between the camera and import into LR.  It may be that the camera isn't recording fractional seconds in the file creation date. ... View more