Scene for Shelly Plus 1 not running

Capture.JPGHello,

Completely new to Shelly.

I am trying to switch on a light after Sunset but only when my computer is on.

I have:

• Plus 1 that is on schedule with the sunset: On at sunset, off at 2.00am
• Plus PM Mini to measure the power of the Desktop.
• Another Plus 1 to control the light.

Then I have created the above scene, which seems fairly basic, but it is not running. (But light will come on when I click the Play button).

Another scene checks the Power of the Desktop and runs fine: when Power is less than 10W, switch off the light.

I would be very grateful for your help.