Starting a flow with a Trust wall switch not working

1st: For how long do you push? My AWST don’t send a signal which Homey recognises when quickly tapping it, I have to press for at least a second!

2nd: (when having flow issues) I always append notification cards, like push, or cards from a messaging app, like one from CallMeBot;
this to rule out issues with non-responding devices:

.

3rd
@ tools.developer.homey.app/tools/devices you can see it’s data, but nothing changes when operating the button

(Funny: it has no capabilities, but it can trigger flows anyhow? Right…)