Did a quick test from flow.homey.app and I get everything I expect, very nice. And the flow turns up in the flow list in the iOS app. And - interestingly - the device now is visible if I for example adds another condition in my Volvo test flow. 
So problem solved, but I guess neither of us understands why.
But the app is really cool and useful. I will create some fun and useful stuff with it. Thanks for quick feedback and your work!
