Photoshop CC 2019: Layer blending issue

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  • Updated 34 minutes ago
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I am noticing another Photoshop CC 2019(20.0.0) issue. Today I ran an action, with the first step being Flatten Image,that I have used for years on layered files, but both times I ran it on onefile, I got two different results, neither of which is how the file is supposedto appear- see examples 1 & 2.  






I tried running a different batchaction on the same file, only the first step on this action Merges Layers. Bothtimes, I got different wrong results- see examples 3 & 4.

 






I manually Merged Layers on the file,and it worked properly- see example below.







When I manually Merged Visible, orFlattened Image, it was done incorrectly- below.

 

I restarted Photoshop, but issue withflattening/merging layers is still not behaving as expected, and it is not even consistently wrong.
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Robert Ripps

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Posted 2 weeks ago

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Andrew Sender, Employee

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Hi Robert,

We are so sorry for your experience.  We are working on a fix for this issue.  By any chance are you working with Image -> Mode -> 16 Bits/Channel ? 

In the meantime, can you try enabling Preferences -> Performance -> "Legacy Compositing" checkbox and see if that fixes your problem?

Sincerely,
Andrew
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Robert Ripps

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Yes, always 16 bit. My next step in action is to convert to 8 bit.

Interestingly, so far I could not replicate errors with other layered, 16 bit files like this one on other images. The additional layer is a Color Lookup adjustment layer, BTW.

I will try checking that box & restarting to see if that helps.

Thanks,
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Robert Ripps

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I tried it and Photoshop CC 2019 seems to be working as expected- using both actions work fine and both Merging Visible and Flattening Image manually work as they did before in CC 2018. Guess I will leave CC 2019 set that way until I hear otherwise.

Thanks.

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Uncle Guy

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Andrew,
Photoshop CC 2019 ver- 20.0.00 I had trouble when flattening layers or saving PSD layered images: The result turned the mask layer or effects layer to solid black opaque and the effect was lost. I had same result if I saved image before I flattened it with layers intact, regardless of the file format. At least saving it in PSD format saved the layers correctly.

Same image in CC v-19.1.4 release I did not have this problem.
 
 
James
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Andrew Sender, Employee

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Hi James,
We're sorry for your similar experience.  There will be a bug fix version (Photoshop CC 2019 20.0.1) coming out soon.  In the meantime, can you try enabling Preferences -> Performance -> Legacy Compositing to see if this resolves your issue.

Sincerely,
Andrew
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Uncle Guy

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Andrew,
This does indeed seem to remedy the problem. Thank you for the solution... I will look forward to the updated version.

James