Denoise AI creating artefacts

[snappy42]

While I like the general results of the new AI denoise feature, I realized in a picture that the AI is creating (randomly?) artefacts on the fotos (black rectangles, see screenshots below; left: original, right: denoised with AI 75%)

[Wurstkrapfen]

Did you do edits in those areas, like spot removal? Reminds me of seomthing that happend when converting edited files into compressed dngs. I had to move the edited spots the render them correctly.

[snappy42]

No, I didn't do any specific edits in those areas, only general adjustments to the whole picture.

The artifacts disappeared when I re-did the AI denoise.

[snappy42]

Found another one (attached). And also a longer thread about similar issues in LR Classic.

[snappy42]

Adding system info for completeness:

Lightroom version: 6.5 x64 [ 20230808-1935-ddaacdd ] (Aug 8 2023)
NGL Version: 1.33.0.12
WF Version: 5.5 1def343
VF Version: 1.0.135.5
HIL Version: 40405
CAI Version: adobe_c2pa/0.4.2 c2pa-rs/0.18.0

Operating system: Windows 11
OS Version: Windows 11 Pro (2009)
Application architecture: x64
System architecture: x64
Computer model: LENOVO 20U90003GE / Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
Logical processor count: 8
Processor speed: 2,3 GHz
Built-in memory: 16134,8 MB
Real memory available to Lightroom: 16134,8 MB
Real memory used by Lightroom: 4943,7 MB (30,6%)
Virtual memory used by Lightroom: 8400,7 MB
Memory cache size: 1076,9 MB

Internal Camera Raw version: 15.5 [ 1595 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1438MB / 8067MB (17%)
Camera Raw real memory: 1039MB / 16134MB (6%)

Display: 3440x1440
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: Yes

Graphics Processor Info: DirectX: Intel(R) UHD Graphics (31.0.101.2125)
Graphics Processor Detail: loaded: Yes, supported: Yes, compute: Yes, init: I3_GPU3, hard: success, soft: success, al: No, dl: No
OS Media Capability: true

Application Folder: C:\Program Files\Adobe\Adobe Lightroom CC
Settings Folder: C:\Users\forsc\AppData\Roaming\Adobe\Lightroom CC
Library Folder: C:\Users\forsc\AppData\Local\Adobe\Lightroom CC\Data

[Jao vdL]

Check if there is a driver update for your specific GPU. The artefacts we've seen discussed on this forum all had to do with issues with the GPU.

[snappy42]

Already done, driver is up to date.