After a day of two this error comes in the event console
Handler TadoZoneHandler of thing tado:zone:demo:7 tried accessing its bridge although the handler was already disposed.
8 times, as i have 8 zones.
I searched an found this: [Chromecast] Fix refresh scheduling issues
So it seems a simular problem, but no idea how to solve it.
By the way it does not seem the be interferring with the working of the (tado) system
Restarting / cleaing cache helps, but only for a few days