Canon EOS R8 + RF 24-50mm: Lightroom Mobile procesa incorrectamente los archivos CR3 capturados entre 24 y 29 mm

Description

Hello,

I found what appears to be a reproducible issue in Lightroom Mobile.

Camera: Canon EOS R8
Lens: Canon RF 24-50mm F4.5-6.3 IS STM
File format: CR3 RAW
Lightroom Mobile version: 11.4.0
Devices tested: iPhone and iPad Pro M4

Issue

Some CR3 files behave incorrectly when editing in Lightroom Mobile.

The problem only occurs with images captured between 24 mm and 29 mm using the Canon RF 24-50mm lens.

When adjusting the Shadows or Highlights sliders, the adjustments affect almost the entire image, behaving similarly to the Exposure slider instead of affecting only the corresponding tonal range.

Images captured at 30 mm or longer behave normally.

Additional observations

* All images were captured in RAW (CR3).
* Camera settings remained the same.
* The issue is reproducible on both iPhone and iPad.
* Disabling Lens Corrections and Chromatic Aberration has no effect.
* Re-importing the files does not solve the issue.
* The exact same CR3 files behave correctly in Lightroom Desktop.

This suggests the RAW files themselves are valid and that the issue may be specific to Lightroom Mobile’s rendering or RAW processing for this lens at focal lengths between 24 mm and 29 mm.

Thank you.