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Question

Could not read preview jpg files only Lightroom Clasic

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Since the last update, I’ve been unable to import or add JPG files to Lightroom Classic (LRC). However, I have no issues importing RAW files from an SD card.

I’m using the latest version of LRC (14.2) on a 2024 MacBook Pro with an M4 chip. I’ve already tried the following troubleshooting steps:

•Ensured all permissions are set to read/write

•Restarted Lightroom

•Reinstalled Lightroom

Despite these efforts, the issue persists. The JPG files are not corrupted—I can open them without any problems. Any advice?

macOS

A

AxelMatt

Community Expert

Just an idea: please check if the option "Treat JPEG files next... " in the preferences is marked.

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My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 26H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 9 - PureRAW 6 - Topaz Photo AI

A

AxelMatt

Community Expert

Do you have try to reset the preferences of Lightroom Classic: How to reset Lightroom Classic preferences (adobe.com)

It's recommended to backup your preferences before you reset the preferences to the default settings:

https://helpx.adobe.com/lightroom-classic/kb/preference-file-and-other-file-locations.html

If this doesn't help, please provide a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

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My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 26H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 9 - PureRAW 6 - Topaz Photo AI

A

AntonioZuritaAuthor

Participant

Thanks Axel, your workaround didn't work unfortunately, here's the system info:

Lightroom Classic version: 14.2 [ 202502071718-3869eef7 ]
License: Creative Cloud
Language setting: en-CA
Operating system: Mac OS 15
Version: 15.3.1 [24D70]
Application architecture: arm64
Logical processor count: 14
Processor speed: NA
SqLite Version: 3.36.0
Power Source: Plugged In, 99%, Charging
Built-in memory: 24,576.0 MB
Dedicated GPU memory used by Lightroom: 105.2MB / 16,384.0MB (0%)
Real memory available to Lightroom: 24,576.0 MB
Real memory used by Lightroom: 1,335.5 MB (5.4%)
Virtual memory used by Lightroom: 411,744.1 MB
Memory cache size: 55.0MB
Internal Camera Raw version: 17.2 [ 2155 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 24MB / 12287MB (0%)
Camera Raw real memory: 26MB / 24576MB (0%)

Cache1:
NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

Cache2:
m:55.0MB, n:0.0MB

U-main: 111.0MB

Standard Preview Size: 1920 pixels
Displays: 1) 1920x1080, 2) 1920x1080

Graphics Processor Info:
Metal: Apple M4 Pro
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/SD Blade 4T/March2025/March2025.lrcat
Settings Folder: /Users/antoniozurita/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr

Config.lua flags:

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johnrellis

Legend

Attach one of the problem files here and we can see if the issue occurs with other LR installations or is specific to yours.

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AntonioZuritaAuthor

Participant

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johnrellis

Legend

The sample photo imports just fine into my LR 14.2 / Mac OS 15.2, confirming there's no general incompatibility with LR and the issue is something specific to your installation. Further steps to narrow down the issue:

1. How are you importing the photo? From an SD card? From the local disk? Via a USB cable?

2. Try putting the photo on the Desktop and importing from there with the Add option (i.e. so it doesn't get moved or copied). Does that work?

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