Windows 10 Cannot use two strokes of the same key

[Patsyjasper]

Two days ago I found that I could not make two strokes of the same key without waiting for about two seconds before making the second stroke. So I cannot type “assist” quickly without it coming out as “asist“. This also happens with other keys such as backspace. There is also an audible sound with each keystroke that was not there before.
I got on the Windows website and someone else had reported the same thing. But no feedback or fix from them.
Anyone got a solution?