IKEA Tretakt: (Often) Not reporting on/off state correctly via ZHA

I’m using two IKEA Tretakt sockets that I successfully added via ZHA to Home Assistant. While switching them on and off via Home Assistant works like a treat, both of them not always report their on/off state properly when I switch them manually. So when I turn them on or off directly with the button on the socket, HA doesn’t change the state. This doesn’t happen all the time, but very often, so it’s hard to say whether a socket is really on or off.

Is this a known issue?