Lightroom gets stuck when pasting settings on 80+ photos

Question

When copy+paste settings from a single RAW photo across 80+ photos, Lightroom eventually just hangs. This usually happens regardless of whether I've restarted my Macbook and Lightroom, it just gives up after 80 something photos.

The same happens for AI updates, often in even smaller batches. So if I want to be safe I need to do 30-40 photos at a time, which to me defeats the purpose of the feature altogether. It's super unreliable and I cannot leave the computer unattended and let it do its thing to 150 photos like I used to.

I'm on a Macbook Pro 14", 2023 model, 96GB of RAM, M3 Max. MacOS Sequoia 15.7.2.
My GPU acceleration settings are on Auto.

This is super frustrating for me because I have to do small batches now and don't get the time savings of being able to let it run whilst I get to step away to do other things.

Anshul_Saini · Accepted Answer

9.1 same issue. After 55-69 photos it stops applying the settings, and just hangs there.

Hi @charlesd29564609,

Thanks for confirming that the issue still occurs in Lightroom 9.1. We’ve seen similar behavior when the local Camera Raw AI models become inconsistent, which can cause batch operations to stall silently.

Please try the steps below carefully and in order:

• Update Lightroom to the latest available version from Creative Cloud to ensure all components are refreshed

• Quit Lightroom completely

• Delete the Camera Raw AI model folders:

• System-level: /Library/Application Support/Adobe/CameraRaw/ModelZoo/

• User-level: ~/Library/Application Support/Adobe/CameraRaw/ModelZoo/

Ensure to delete the entire ModelZoo folder, not just the contents

• Relaunch Lightroom

• Test by applying settings to a single image first, then retry a larger batch

This reset has helped in other cases where AI-driven batch edits stop or get stuck partway without errors.

Please let us know how it goes so we can decide on the next steps if needed.

Best regards,

Anshul Saini

Aleke · Answer

Hi @EmeraldSkies, thanks for reaching out!
Could you let us know what types of settings you’re copying and pasting? If you’re working with AI edits like AI Denoise, it can take longer to apply those settings, so doing it in smaller batches is usually recommended.
Also, which version of Lightroom are you using? If you haven’t updated to the latest version yet, that can often help improve performance.
As an initial step, resetting your preferences might help too. You can find detailed instructions here:
https://adobe.ly/3KfSSQg
Thanks!
Alek

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