Is this Zigbee power strip faulty or does it require further setup?

I recently purchased one of these Zigbee Power Strips. I assumed it would work out of the box once connected with HA.

However only one of the sockets can be controlled by HA. All the others report their state fine but flicking the switch in HA has no effect.

I’m new to Zigbee, is there something extra i need to / can do to get full control of this device or is it faulty?

I tried to have a play around with the Clusters but I don’t know what i’m doing and could only get the switch that already works to do anything.

Here is a video:

I eventually fixed this issue by deleting and re-adding the Zigbee integration.