Aeotec Door Window Sensor 7 - ZWA008

Hi,
I have the feeling that these sensors are not very reliable. I’ve been trying to troubleshoot them all weekend but it seems that I am not the only one who is encountering unreliability from them. Especially once a window/door has been opened, it will not reliable send out a “closed” command. Sometimes I need to close the door mutiple times until it shows up as closed. And even then, it comes with some delay.

I can’t endorse them.
My Fibaro door window contacts are much more reliable in this regard.

Someone else having these issues?
One at least:
Aeotec door / window sensor 7 not showing any sensors? - #4 by Swallowtail @Swallowtail