P: Colored "pixel" artifacts/subdued blacks in shadow areas (older Macs) (also visible on CR)

Developp in version 4 (versus Version 6) of process seems better for me

The same thing is continually happening to me.  (I posted prior)  It's not consistent at all.  I'm seeing it more in the black tones and especially black and white images I make.  I turned off the GPU and it's still happening.  Adobe please help this professional photographer out!  It's my busy season and don't have time for this!!   Thanks, Teresa

Hey there, just seeing if anyone else has experienced this issue before and if there is a fix. Colors look great while in Lightroom but after export the shadows and blacks are getting quite distorted. Below is an example as well as my export settings. Seems to of just started happening this week and I havent changed my export settings in probably 10 years so thinking maybe its a bug or an app update changed something. 

Any help is greatly appreciated

(image on left is in LRC and tight image on right is exported version)

This is exactly what was happening to me!

Hello, I've been having issues with color distortion (I think) while editing and exporting images in Lightoom Classic. It looks like there are histograms levels that show up automatically on the photo and won't go away. The only things that have worked to get rid of the distortion is changing the process from Version 6 to Version 5 or 4 under Calibration. Would love some help with this!

I'm having the same issue. 

Hoping they can get us an update.

In response to Rikk latest reply:

"Second - and perhaps more importantly, we need to ask a question of those who are afflicted with the unusual colored pixels. 

If you edit your photo, and the odd pixels are present, scroll down to the Calibration Panel and change the Process Version from 6 (Current) to PV 5. Do not touch any edit controls. Does your image now render correctly? (Note: you may have to zoom in and out once to force a rerender. Moving to the next image in the filmstrip should accomplish the same refresh.)"

No, this did not fix the issue I am having. Nor does turning off GPU. My exported images are still showing the odd pixels.

Hi, when i'm importing a pics in Lighroom classic, pics looks ok in the bibliotheque and when i swap to developpement, in some area (dark one) i've got a big problem of moiré like there no pixels or there are corrupt... i've got some exemple but i'm not sure that i can dowload them into this post... i've tryed with another computer and there is no problem at all.

This artefact is not appearing in photoshop. Same files of course.

It is not very clear, i hope somebody will help me on this case...

Xavier