I have a wall mounted iPhone that always is on and is showing the «dashboard» on the Home Tab of the Homey app.
Apparently the wifi connection is not 100% stable and some times when I come home it displays a screen in Homey saying: «Can´t connect to Homey Pro. Make sure the Homey Pro is correctly connected with an active network connection. (Retry button)».
When I press «Retry» the it will show the dashboard again, because the network connection have been restored.
Suggestion: When the Homey App looses connection to the Homey Pro it should try to reconnect automatically every 2 minutes or so.