Affinity Photo Editor Version 1.10.4.1198 - Bug

[pmc304053]

I am experiencing a very recent  problem with a horizontal bar or line appearing on images  in Affinity Photo Editor.  Occurs with scanned B&W negatives , scanned Kodachrome transparencies  (not present on scanned image prior to editing) and also with direct digital capture images. Where I use  tools,  for example:  Levels, Brightness & Contrast, Highlights & Shadows etc and hit Merge these random horizontal lines or bars appear on the image.  There is no consistency to this occurrence and positioning of the lines is random - maybe 0 or 4, 12....    I use the Edit button and Undo the Merge and the line disappears.  I have attached a cropped section of a scanned 4x5 negative and a crop from a digital capture image showing examples.

Any help most appreciated.

[RichardMH]

Quite possibly a problem with OpenCL acceleration. Try turning it off in Edit->Preferences->Performance.

[pmc304053]

RichardMH  - thank you, I have turned off the Open Cl as you suggested, and it seems to have solved the problem!

Thanks again

Peter

[Moire]

I've had exactly this issue as well, and turning off OpenCL appears to have cured it!

So, is this an issue for the graphics driver?

[Komatös]

1 hour ago, Moire said:

I've had exactly this issue as well, and turning off OpenCL appears to have cured it!

So, is this an issue for the graphics driver?

It is a little more complex. It is, to my knowledge, the interaction of the different components and their tolerances.