Yellow banding whilst increasing brightness/exposure. 2.5.7 and 2.6 Windows on ARM.

[TDiBoy]

I've been using Affinity Photo since v1.5 and have generally been issue free.

I've recently bought a Dell XPS 13 9345 Snapdragon based laptop and noticed I get a strange yellow banding when increasing exposure of brightness such as below:

I've never noticed this on the x86 version.

I've tried 2.5.7 and 2.6 ARM.

I'm on the latest Dell drivers, BIOS and Windows 11 24H2.  I've tried the developer preview editions also to see if that helps but still get the same result.  It doesn't seem to show up in the other personas as per the last photo.

Exports don't seem to show it either:

 

 

 

I've dried the standard GPU renderer and the WARP one but no change.

 

Has anyone else experienced this?

 

Thanks,

Dave

 

Edited February 28 by TDiBoy

[carl123]

You have "Show Clipped Tones" selected in the Toolbar

Second from last icon, top-right of screen

[TDiBoy]

Thanks for the speedy and correct response.  I hadn't realised I had selected that option and had put it down to an ARM bug.

De-selected it and back to normal now.  Odd how it was showing as a band.  Logically, it should have started to consume the brighter parts as the brightness/exposure were increased.  Instead, it just behaved like an expanding smoke ring...