Hugo_H
1
After the update of 28 of June, the Tradfri amp produces the error: no response, ensure it has power. The is on.
Reboot of Homey and the App has no effect.
Homey Pro 2019.
Remove and add has resolved this. Lucky I have only one device with 3 flows. Do-able. 
Probably re-pairing it (without removal prior to it) would have helped as well.
For next time: you can fix your flows with a magnificent script: [HOW-TO][Pro][Cloud] - Tool to FIX (advanced) flows after removing and re-adding devices
