P: (GPU) Develop/Edit view & Export artifacts after 14.4.1 Update (AMD-only) (affects Cr, LrC & LrD)

[hyund39164868]

Hi,

Since just now, I've been experiencing a weird bug / crash in Lightroom Classic (on a Mac), where ALL my photos suddenly are fully covered in artefacts in the Develop module.

(Screengrab from the Develop module in Lightroom Classic)

When I check the linked RAW + JPEG source files in Finder, they all seem ok (they don't look corrupted, nor show any artefacts here), meaning the issue is within Lightroom.

(Screengrab from the RAW source file in Finder)

When I export images out of Lightroom (with any setting, edited or even not edited), the artefacts are also present on the export files.

(Screengrab from the exported JPG image)

This problem started occuring soon after I applied the new AI noise reduction feature on just ONE (1) photo. 

I already tried:

• Closing and re-opening Lightroom
• Shutting down (fully), and restarting the computer after 1 minute
• Switching the GPU accelrator setting in Lightroom on/off

MY SPECS

• Lightroom Classic 13.0.1 - Build (202310121438-d2af310c)
• Macbook Pro 16" - 2019
• 2,3Ghz 8-core Intel Core i9
• AMD Radeon Pro 5500M 8GB 
• 32GB 2667MHz DDR4 memory
• OS Sonoma 14.4.1

Any help would be greatly appreciated, because this makes the whole software unusable....

Thank you!

[johnrellis]

Moderators, @Rikk Flohr: Photography, please merge with the existing bug:

https://community.adobe.com/t5/lightroom-classic-bugs/p-gpu-develop-edit-view-amp-export-artifacts-a...

[janets356218]

1. I am using Lightroom Classic. version 13.5

2. My Opereting System is Sonoma 14.5

3. GPU- AMD Radeon Pro 5300M 

[janets356218]

Thank you for this! I turned it off and am editing. It doesn't always happen right away so I will have to keep editing and see if it happens. Thank you! 

[janets356218]

Hmm. No I am using Sonoma 14.5

[janets356218]

It's happening only in develop module. I have also noticed it seems to happen more often when I am doing heavier editing, like copy pasting AI preferences to multiple photos. 

[joeymphotos]

Thank you - I appreciate the info!

[GoldingD]

It's happening only in develop module.

Can you post in a reply what you have in /Preferences/Performance/

[GoldingD]

and when I restart my computer and begin editing again, the files come back and I'll have no issues. 

It's happening only in develop module

Cleans up after a restart of LrC, and you begin editing. And it is when in Develop.

What if when it happens, you zoom in?

Also what happens if you purge the Camera RAW CACHE? (/Preferences/Performance/Camera RAwCACHE/)

[JohanElzenga]

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@janets356218 wrote:

1. I am using Lightroom Classic. version 13.5

2. My Opereting System is Sonoma 14.5

3. GPU- AMD Radeon Pro 5300M 

---

Yes, this is definitely the GPU. There is a known problem with AMD Radeon GPU. It seems there are various issues: 

https://community.adobe.com/t5/lightroom-classic-bugs/p-gpu-develop-edit-view-amp-export-artifacts-a...