white stripe appears on jpg exported image

[MasterBooth]

I use Affinity Photo 1.10.6 to edit images and then export them in jpg. Recently I noticed that some exported images were saved with 1-2 horizontal white stripes on them. The stripes did not appear on the image in Affinity Photo, only after exporting. This has not happened in the past, only recently. I can't think of any change in my workflow that could cause this. I handle many photos that I open in jpg and save in jpg (replacing the original) so that I expect I can rely on the exported image being exactly as I see it in AF. What is causing this issue and how can I prevent it?

[Callum]

Hi Master Booth,

Disabling Open CL in the apps performance preferences should solve this issue for you

Thanks
C

[MasterBooth]

@Callum Thank you, I've disabled it - hope this works! : )