[Saving as JPEG on Affinity Photo 1.10.4.1198 introduces digital artifacts]

1 hour ago, RichardMH said:

Possibly a problem with OpenCL. Try turning it off (Edit->Preferences->Performance). A clean install of graphics drivers might also help. (There's a new NVIDIA driver that seems more stable)

Thanks Richard! The vital piece of information that I'd missed off, is that I've never used Affinity Photo on this machine before editing these photos, it's my "new" laptop, so it's not as though AP has been working perfectly fine up until now on this machine. Indeed, OpenCL *was* switched on, it's an i7 with Intel Iris Graphics.

I'll see how I get on.

Kind Regards,

Nick.

[Saving as JPEG on Affinity Photo 1.10.4.1198 introduces digital artifacts]

Hi,

Amateur photographer and professional software developer here (28 years) - I've spent the evening rotating and cropping photos, and when I've saved over the originals, JPEG artifacts are introduced. Annoyingly, I only spotted these later and I had to re-edit the originals. I've never seen Affinity do this before, so I'm guessing it's a regression in the new build. I'm assuming that the RAM in my machine is ok, it's new-ish and I've never had any problems with it previously.

Hopefully your devs read this - please contact me, and I'll send you the full "broken" photos (which you'll need rather than these crops), looking at the JPEG file directly in a hex editor might yield more clues. Don't want to post full pics here of my children.

Other than that, fabulous, easy-to-use, well-priced product with great features and plenty of helpful online tutorials.

Thanks,

Nick.