I am on windows 10 and I have been for a while, but this has only just recently occurred in the last day.

Whenever I press ALT+TAB to switch windows, normally when I release the keys it will switch to the window highlighted, however recently when I release ALT+TAB it does not automatically switch it just gets stuck on the preview screen. I have to manually selected the tab with the arrow keys or my mouse to recover from it.

This is only intermittently though.

Things I have tried:
Restarting machine
Running virus scan (I am using Sophos Home)
Reinstalling keyboard driver

But the above things have not worked.

Please could someone help me resolve this please?

Image is below.

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