Dashboard on Vera3 - "1 device is no longer connected"

[cw-kid]

Only slightly related thread I could find

Lua / Luup : How can I list all devices reporting an error on the dashboard UI?

Hi I have a number of hue lights that report “Can’t Detect Device’ in the Vera UI. How can I identify them with some Luup / Lua code, as I can’t seem to see anything in the standard devices variables ?