Starting a flow from a momentary switch - Shelly i4

The preliminaries:
Homey Pro early 2013 version 12.1.2
I am having problems with the attached flow
[Test Flow|640x93](upload://qIvvJGWx4lMH1iGL1DSZAQOfa3h.jpeg]
It is a very simple flow…
A short push on the momentary button 1 connected to the Shelly i4 should turn on a group of lights, the problem is that it doesn’t.
I also have a flow to turn the lights off, double push button 1.
Testing the two flows from the desktop app works.
When testing with the button no response.
I have checked the Shelly i4 it is wired correctly and has power at all times.
Any help will be appreciated.

Which flow?

I have the same problem. I testing simply flow with shelly i4. When I toggle the switch nothing happens. How do I set up Shelly i4 please?

I may be barking up the wrong tree, but I would try to configure the switch to operate in “detached mode” in the Shelly app.

Volgens mij heeft een i4 geen detached functie.

Je kan een webhook proberen: shelly app > actions > … > url: http://xxx.xxx.xxx.xxx/webhook?event=test

Homey: Als > Logic > Webhook evenement test is ontvangen

Translated:

I don’t think an i4 has a detached function.

You can try a webhook: shelly app > actions > … > url: http://xxx.xxx.xxx.xxx/webhook?event=test

Homey: When > Logic > Webhook event test is received

( xxx.xxx.xxx.xxx is IP-adres of your Homey)