I have some motion sensors (Aeon Multisensors), which seem to be online

But the sensor status does not get updated...

When clicking Device 12 > General purpose update:

-> but nothing changes

Clicking Device 13 > 'update', does not even add anything to the queue ?!

After clicking every update button multiple times, this is what it looks like:

Chip/pi reboot doesn't help.
I have a Raspberry pi with a RaZberry module.
All sensors are powered by cable (no battery sensors)
What is wrong with my setup? Is it some mistake on my side, or a bug, or a misconfiguration in the software??