Plugins seems to work well, but when I want to use this as a trigger to switch off the plug that I monitor, it doesn't seems to work. Worse doesn't seems to notify anything.
Have a look at the light icon on the Combination Switch. Does it ever change from lit to unlit, or vice versa? If not, then you have inadvertently created a set of conditions that is always true, or always false.
Events occur only when the Combination Switch moves from lit to unlit, or from unlit to lit. For example, if your device is off, then it is changed to on but with power more than 20 watts, there will be no event because never were both conditions simultaneously true.
If you can describe in English what you want to do, I can see if what you have programmed the Combination Switch to do matches this. At the moment it is not at all clear to me what you are expecting.
Edit: I made a combination switch with two conditions: switch power is on, power consumption is from (blank) to 20 W, threshold = 2. It lights up as expected when I vary that device's wattage (it was a dimmer, so easy to adjust its power consumption). The combination switch icon lights up mostly as expected. More on this shortly.
Then I made a scene, triggered by Combination Switch > virtual switch status changes > switch turns on, and made it turn the light off completely. This fired as expected.
(Conjecture: you are using the events
"Triggered when ..." "Poked when ...". Don't use these. Use the event "virtual switch status changes".)
So, I can confirm that events do fire, and that it's possible that your scene trigger is testing for the wrong event.
That said, I think that you need to tweak the conditions that you are using. Using the conditions in my test, I found that turning the device (the dimmed light) on from cold also caused the Combination Switch event to fire, turning it right back off again, because the Watts were less than 20. My advice is to take out the Switch Power Status check, and rely only on the power. This way the event will be caused only by the power consumption transitioning from over 20 W to under 20 W, which I assume is only going to happen while the switch is turned on anyway.
Try that and see how you go.
I saw that version 7.0 seems to be in MCV process. Do you have ETA when it will be publised?
It's out of my hands. MCV are the gatekeepers. Outside weekends, updates tend to take 0 to 48 hours. Edit: Version 7 is published.