Zigbee plug turning off at random

I have a couple of “china” tuya zigbee plugs.
But the straige thing is that they randomly turn off. (not by me, of by a service or automation)
I mainly see it when there is nothing attached to the plug, (so there is no load)
Could it be there is a feature in these plug that they turn off after X time when there is no load.

I have these ones:


There is already a topic on this,
(i over looked it)
see here: