Weird selection problem - Photoshop on macOS High Sierra V 10.13.6.
Every time I make a selection using the quick selection tool, the image kinda jumps like this. If I minimise the Photoshop window and maximise it again, the selection is back as it should be. Any ideas on what the issue could be?
My system details.
Photoshop CC. High Sierra V 10.13.6.
iMac Mid 2011. 2.7 GHz Intel Core i5. 24 GB ram.

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