Why does the pen spin when I put my hand on?

I recently bought a Lenovo Yoga C940 with 16GB Ram and 1000GB SSD for university etc. Since then, I've been writing about OneNote on my notebook every day. But suddenly it is almost an impossibility. As soon as I put my hand on the display to write something, the pen spins like crazy. If I don't hang up, it works great! Does anyone know a possible reason why this is so? I honestly don't want to struggle with such problems with an almost 2000 euro device.

In the video you first see how I write on the display without my hand and then what it looks like when I put my hand up.

Because your hand is typing, just like the pen. You'll have to live with that.

It comes from the fact that the touchscreen "thinks" it's your pen too

In the pen settings you have to set that the pen is only active and that you can only move everything with your hand.

I just don't know what that means exactly. At the bottom right of the taskbar you should have such a pencil symbol, click there and open the settings.

Don't have my Envy ready to see what it's called.