My keyboard sometimes doesn't work in Fortnite?

With me in Fortnite, my keyboard sometimes no longer works, but I can press the ESC, Shift and Windows keys and they go.

Neither keyboard works with me, I had already tried two, but it doesn't work with either of them.

Hopefully someone can help me.

When I read your text like this, some keys are missing. The point, the comma, only works sporadically. This leads to massive problems of understanding even when the question is asked. Does the keyboard work correctly, including the alternative, for example in Word or the Wordpad Editor?