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Macsharp
Macsharp
November 22, 2025

P: Lens Blur not working since updating to LR 15

  • November 22, 2025
  • 13 replies
  • 4763 views

My lens blur only works very occassionaly since updating and now almost never. It sometimes worked if I restarted but not any longer. Very frustrating.

Any help would be appreciated. 

 

Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]
License: Creative Cloud
Language setting: en-NZ
Operating system: Mac OS 26
Version: 26.1.0 [25B78]
Application architecture: arm64
Logical processor count: 14
Processor speed: NA
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.171

Built-in memory: 24,576.0 MB
Dedicated GPU memory used by Lightroom: 2,833.1MB / 18,186.2MB (15%)
Real memory available to Lightroom: 24,576.0 MB
Real memory used by Lightroom: 5,283.4 MB (21.4%)
Virtual memory used by Lightroom: 439,435.3 MB
Memory cache size: 55.6MB
Internal Camera Raw version: 18.0 [ 2389 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 3303MB / 12287MB (26%)
Camera Raw real memory: 3454MB / 24576MB (14%)

Cache1:
Final1- RAM:3,341.0MB, VRAM:0.0MB, IMG_3185.DNG
NT- RAM:3,341.0MB, VRAM:0.0MB, Combined:3,341.0MB

Cache2:
m:55.6MB, n:383.3MB

U-main: 150.0MB

Standard Preview Size: 2048 pixels
Displays: 1) 4608x2592

Graphics Processor Info:
Metal: Apple M4 Pro
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: ON
GPU for Preview Generation: Auto (S5_17)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/stevensharp/Pictures/Lightroom/Steven/Stevens-v14-2024.lrcat
Settings Folder: /Users/stevensharp/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Canon Print Studio Pro
3) SmugMug
4) Topaz Photo (Studio)
5) Topaz Photo AI

Config.lua flags:

 

 

    13 replies

    Show previous replies
    JohanElzenga
    Community Expert
    JohanElzengaCommunity Expert
    Community Expert
    November 28, 2025

    Things that 'sometimes work' and 'sometimes don't work' are not easy, but often hard to reproduce! I tried reproducing it on my MBP with the same specs as your Mac Studio:  M1 Max , Sequioa 15.6, but I can't. Lens Blur works every time I try it.

     

    -- Johan W. Elzenga
    S.Seng
    S.Seng
    Participating Frequently
    November 30, 2025

    I am also having same issue with Lightroom for iPad 9paid version) current and previous versions. 

    M
    marieps
    Known Participant
    November 28, 2025

    I have the same effects with Apple M1 Max and Mac OS 15.6. Sometimes it works, somethimes it doesn't.

    In Camera Raw it works fine. 

    emilz45253183
    emilz45253183
    Inspiring
    November 27, 2025

    This appers to be a widespread issue. It doies not reqiure PhD to reproduce. Maybe Adobe should hire some QA staff and do some testing. But I guess forcing the AI on all of us is just more profitable. What a laughable company, 

    johnrellis
    johnrellis
    Legend
    November 28, 2025

    @emilz45253183: "This appers to be a widespread issue. It doies not reqiure PhD to reproduce. "

     

    There are indeed a fair number of reports here about flaky Lens Blur in LR 15. But so far, no one has published a recipe for triggering the bug(s) reliably on other installations. Without such a recipe, Adobe is unlikely to pay much attention, unless many more people report the problems (don't blame the messenger).  I've tried reproducing the problem in my Mac and Windows installations, without success.a 

     

    See above for providing a reproducible test case:

    https://community.adobe.com/t5/lightroom-classic-discussions/lens-blur-not-working-since-updating-to-lr-15/m-p/15611590#M420046

    Sameer K
    Community Manager
    Sameer KCommunity Manager
    Community Manager
    November 26, 2025

    Hey, @two miles5336627. In this thread, other users have reported that restarting Lightroom Classic helps. 

    If it does not help, you can try creating a test catalog from File > New Catalog and importing a few images to verify if the issue appears in the new catalog. 

     

    If it does not, from within the new catalog, you can use File > Import from catalog, point to your previous catalog, and proceed to merge the old catalog into the new test catalog. 

     

    Let me know how it goes. Thanks!
    Sameer K
    (Type '@' and type my name to mention me when you reply)

    johnrellis
    johnrellis
    Legend
    November 22, 2025

    There have been a number of reports about Lens Blur failure in LR 15, but so far nothing wrapped up with a bow that Adobe can easily reproduce. They're much less likely to pay attention unless many people report similar symptoms.

     

    1. Attach a full-resolution screenshot (not a phone pic) of the *entire* LR window while in Develop showing Lens Blur not working on a photo.

     

    2. With the photo selected, go to Library and do Metadata > Save Metadata To File.

     

    3. Share the photo (and it's raw, its .xmp sidecar) here. If the forum won't let you attach the files here, upload them to Wetransfer, Dropbox, Google Drive or similar free service and post the sharing link here.

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