Screen problem - Image is appeari at the left corner in Photoshop

Hi,

After been working with different pictures suddenly one image (and all next onces afterwards) was only to be seen for a very small part in the left corner of my screen (Please see sceenshot.).

Couldn't do anything about it when I've tried several different views - this didn't change a thing?

Restarting doesn't help neather.

Anyone who know what happening here?

(working with Photoshop 22.1.1 - Catalina)

Thx for any comment

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