#ZHA : power consumption of NOUS A7Z plugs frequently drops to 0

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severe fable
#

Hello,

I'm using ZHA integration with some connected plugs, and I'm observing this unexpected behaviour:
I have 2 NOUS A7Z smart plugs (https://nous.technology/product/a7z3.html) which are successfully connected to HA.
However, every 4 minutes, the polled power consumption is 0 (otherwise the value seems fine). We can clearly see the drops of value on the screenshot.

What could cause this ?

I have to add that I have also 2 IKEA smart plugs, and I don't notice such behaviour.

Thanks for your help!