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thetheodor
Participant
July 31, 2026

P: Denoise results in a checkerboard pattern (CR & LrC)

  • Lightroom Classic version: 15.4.1 [ 202606201310-b9f148a4 ]
  • Operating system: Mac OS 26 Version: 26.5.2 [25F84]
  • Computer: Mac Studio M4 Max
  • Camera: Canon R5 Mark II

I noticed that in some photos enabling Denoise results in a checkeboard-like pattern, there are very distinct tiles. This is shown in the following photo:

Checker Board


I exported a catalog with the above photo including the edit history that demonstrates the issue. I couldn’t attach it as it’s ~100MB, instead I uploaded it to google drive: Exported Catalog with the above photo

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    Rikk Flohr_Photography
    Community Manager
    July 31, 2026

    Thank you for the report and the test file. I’ve verified the problem is in the underlying Camera Raw engine and have moved your report from Lightroom Classic Bugs to Camera Raw Bugs. 

    Rikk Flohr: Adobe Photography Org