Photoshop 21.2.0: "Select Subject" use the old Algorithm...

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  • Updated 2 months ago
  • (Edited)
I have installed Photoshop 21.2.0...

On my iMac at Work the new improved "Select Subject" Algorithm is working perfectly!

Now I have tried it on my iMac at Home (its an not so powerful iMac), it seems it use the older Algorithm (with no better Selections (like hair etc.)... :-(

Whats happen here?

My iMac at Home is:
iMac Retina 4K, 21,5", Late 2015, High Sierra 10.13.6, 8GB RAM, Intel Iris Pro Graphics 6200
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Posted 2 months ago

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Yukie (staff), Employee

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Official Response

Hi Christian, MacOS.10.13.x macOS will run old (original) Select Subject model. New Select Subject models require macOS 10.15.x or 10.14.x. 

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Stan Jones

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I updated as well. When I use the new and improved select subject and move it to a new background, when I try to move the subject in the new background Photoshop makes another copy of the subject! 
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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You have "Legacy Compositing" checked. Go to Preferences > Performance... and uncheck "Legacy Compositing"
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Stan Jones

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YES! That fixed it!!! THANK YOU!!!!!!!!