Coincidental with migration to the new app, my hub is reporting all of my devices as offline to both the new app and to my Alexa device. I can still control the devices, turn lights on/off, etc. but Alexa tells me it cannot access the device. I have 6 ZWave and one Zigbee device. I did power down the hub and restarted and it had no effect. I have a model STH-ETH-250 hub.
What region are you located? If UK or Europe, there appears to be an issue…
I’m seeing this same thing. I am in the US, with a V2 hub. This started for me yesterday - everything shows as offline, including the hub, but I can go into each device in either the old or new app and still actuate it, and it does what I told it to.
My problem has been corrected. Thanks