One of the problems I had with the free Google version of SFX is that occasionally very thin straight lines would appear in places on the image, sometimes several lines in a grid pattern. You usually had to view at 100% to see them but were sometimes obvious at standard view. The lines were not present on the image in Lightroom, nor were they present on the Neutral image produced by SFX, they appeared once a preset effect was applied. Not all presets would do this and the presets that did do it would change with the image. I also tried not applying the preset but instead manually moving the sliders to the same settings as a preset which was causing the problem on a given image - lines appeared again. Ok, so move forward to the new DxO version on the Nik Collection and I was hoping that this was some sort of incompatibility bug with recent operating systems which would have been fixed - no, it’s still happening.
I’m using Windows 7, all updates and service packs installed, and Lightroom 6.
An internet search for ‘vertical lines’ or ‘grid lines’ on SFX images brings up results showing I’m not the only one to experience this issue. Any chance of a fix? TBH I’m reluctant to upgrade to the paying DxO version at the present time with this serious bug present. If it were eliminated I’d pay for it.