Screen not updating

WilfredS1

Bit poster
Hi,

I updated to latest version Version 17.1.1 (51537) on macOS High Sierra

All machines seem to run fine. But the screen do not refresh. If i switch between fullscreen and window, and back, I can see what the screen looks like at that moment. The miniature window in Control Center is updating as normal.

What can I do to fix this problem?
 
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