I added one Fibaro Robber Shutter (FGR 223), and the node it added successfully. It appears - as expected - just once if I go to Configuration - Z-Wave - Nodes.
However, when looking at Integrations - Z-Wave, the “FIBARO System FGRM223 Roller Shutter Controller 3” has been added twice.
One instance is connected to my “AEON Labs ZW090 Z-Stick Gen5 EU”. This one has also one zwave entity, 2 cover entities, and 8 entities
The second instance is added to “FIBARO System FGRM223 Roller Shutter Controller 3”. This one has only the 8 sensor entities, the same as above only with a _2 suffix.
I’ve just added 17 FGR 223 and I have the same behaviour : I have 34 devices, all have been created twice. I can confirm it in the core.device_registry.
For each roller shutter the first device 11 entities, the second one only has 8 entities.
According to the PDF manual, endpoint 1 supports command classes METER and NOTIFICATION, while endpoint 2 does not. This means endpoint 1 will have additional power and notification sensors.