Chime 2nd Generation - Blue Light Permanently on. (well kind of)

Hi I have a 2nd Generation Chime and the blue light keeps coming back on. I have set it to disabled in the app, but roughly 24 hours later the light is back on. (even tried to toggle it to on, then wait a day, then turn it off). The chime unit has been reset, still comes back on after being turned off. The chime has been de-activated and then added back to the account, but the light still comes back on after being set to disabled. The device is connected to the Wi-Fi ok, no disconnects, power is on 24/7. Chime works when doorbell is used. anyone else experienced this and did you manage to resolve it. ? thanks