Connecting MIJIA WXKG01LM with SkyConnect Zigbee

Hi
I bought a couple of MIJIA WXKG01LM Switches I intended to use as light-switches with Home Assistant.

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Also connected to my Home Assistant Raspberry is a SkyConnect to enable Zigbee (Home Assistant SkyConnect - Home Assistant). I installed the ZHA integration and created a network.

Now: I am unable to pair the Switches to HA. When pressing the button for 5 Seconds the LED will blink rapidly 2 times, but thats it. As I understand it, it should blink rapidly for longer (atleast until its paired).

Has anybody gotten these types of switches to work?

Happy with any help!