FIBARO FGWPE/F Wall Plug Gen5 - suddenly not reflecting state change

Hi,
I have a FIBARO FGWPE/F Wall Plug Gen5 that works for a while and then just “lose” the ability to reflect its state on HA or receive commands from HA. The thing is that it continue to communicate with HA (through my UZB) on its other sensors like power consumption.
Checking the zwave log, this is what appears when I change manually the plug state:

2019-11-16 19:40:21.976 Detail, Node041,   Received: 0x01, 0x09, 0x00, 0x04, 0x00, 0x29, 0x03, 0x25, 0x03, 0xff, 0x01
2019-11-16 19:40:21.977 Detail,
2019-11-16 19:40:21.977 Warning, Node041, Received a Clear Text Message for the CommandClass COMMAND_CLASS_SWITCH_BINARY which is Secured
2019-11-16 19:40:21.977 Warning, Node041,    Dropping Message
2019-11-16 19:40:22.112 Detail, Node041,   Received: 0x01, 0x0c, 0x00, 0x04, 0x00, 0x29, 0x06, 0x31, 0x05, 0x04, 0x22, 0x00, 0x08, 0xc2

(after this log there’s a log about power consumption change that is visible in HA).

This is the relevant command class on my zwcfg_0x…xml:

<CommandClass id="37" name="COMMAND_CLASS_SWITCH_BINARY" version="1" request_flags="4" issecured="true" innif="true">
	<Instance index="1" />
	<Value type="bool" genre="user" instance="1" index="0" label="Switch" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="True" />
</CommandClass>

I already decoupled and re-coupled the device from/to my zwave network and factory reset the device - couple of times. It then works but after a while return to not reflect its state nor respond to change state commands from HA.

Any idea what is wrong with this plug?

Thanks.