Photoshop 21.2 major glitch on large screen monitor

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  • Updated 3 days ago
On my Dell 34 monitor the latest Photoshop 21.2 (Mac OS 10.15.5 Catalina) has a serious issue. It won't refresh screen if you make changes. The screen just go to dark grey as soon as you make changes in art boards. Then if you move the art board it'll go back to normal. This happens consistently when you have many art boards in one PSD file. Downgrading to 21.1.3 solved the issue completely.
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Posted 3 days ago

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Photo of Dave Grainger

Dave Grainger

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There is a very lengthy discussion about this with a workaround listed, that you would have found by using the Search box at the top of this page.... That search is the place to start; rarely does someone have a "new" issue that has not already been discussed and often resolved;.

The work around: Turn off legacy compositing .  Edit-Preferences- Performance uncheck the box on Legacy Compositing