Participating Frequently

Question

LR Denoise no longer working

Forum|Forum|10 months ago
May 2, 2025
3 replies
1828 views

Others have also had issues with Lightroom's Denoise not working but mine appears to be possibly slightly different. OK - I am up to date with Lightroom, I have plenty of storage on my Mac, I always shoot in RAW and the Denoise feature was working perfectly up until a few weeks ago. In fact a few things have been going a bit wrong with LR lately including having to close down LR and go in again because I sporadically lose "information" on my photos). Not sure if relevant but I also have the Topaz DeNoise plug-in. I have had this for a while and it's never been an issue before. In the past I have always been able to choose which Denoise to use either Topaz or LR depending upon which looked best. The Topaz denoise function still works by the way.

Now if I press the Denoise button in LR I am taken to the usual Enhance Preview screen and whilst it looks like the image is loading properly it then greys out and if I press "enhance", I get a new window called Enhance Errors which states that denoise was not applied and am given the file name (the DNG file) BUT with what looks like the green "D" logo for Topaz Denoise at the start of the file name. So I am wondering if somehow, LR and Denoise have confused each other.

Be grateful for any help to get things sorted again. TIA.

Bug

G

GhostGirl

Participant

Hi! So, I was running into this issue as well, and it turned out - after the last update my prefernces got mixed up..!

Make sure that your Performance settings are set to the best performance and using your graphics card for Display, Image Processing, and Export. Then restart the program.

Hope this helps (:

A

Aleke

Community Manager

Hi @TamsinH! Welcome to the community!

I'm sorry to hear that denoise isn't working correctly for you. Could you share a screenshot of the error message? Also, could you test if the issue persists if you temporarily disable Topaz Denoise?

Thanks so much!

Alek

*(If you mention me with an @, like @Aleke, I’ll get a notification and can respond faster.)*

T

TamsinHAuthor

Participating Frequently

Hi there - thanks for coming back to me. This is a bit of a weird one. Before I load up everything you ask for I can add a bit more information. When I click on finder for each photo - every time, as I mentioned above, the file name is prefixed with the Topaz D symbol and interestingly also shows to open with Topaz Denoise rather than "Preview" as default. Having changed it back to Preview, and trying again in LR to use Denoise, the same thing is happening ie the enhance feature doesn't work and the file names are still showing up with the Topaz D at the start. I have no idea how or why the file names have been altered but it appears, from my random selection that every photo in my catalog has the same D symbol in front of the photo file names. My husband aslso has LR and the symbol in front of his photo file names is the Preview App.. He too has Topaz Denoise by the way!

Thanks

Tamsin

J

Jao vdL

Community Expert

If the image at any time was run through topaz Denoise, you won't be able to use the built in denoise on it anymore. It sounds like the dng files you are working with might have been run through topaz at some point in time. Make sure you are working with an original raw not one that was run through denoise already.

kglad

Community Expert

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

<"moved from using the community bugs">

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