For me it only works when the app is running in the background.
I have sent Athom an e-mail regarding this issue. Hopefully I receive next weer an answer. If so, I let you know. 
ps. Athom uses a new support link. The mail address does not work anymore.
You have tried to send an email directly to a support email address of ours, probably to try to create a new support request. Unfortunately, this is not the correct way to get in touch with our support team, so no support ticket is created at this moment.
To get support for your question, please use our Knowledge Base via https://support.homey.app. It provides a whole host of information as well as a structured contact form in case you still have questions or issues, which helps our support team help everyone better.
Thanks for your understanding.
All the best,
The Homey Support Team
