Aha, so that’s it, now I understand the note. 
As soon as experimental features is enabled, the attribute is being removed from sensor.hacs and new update sensors are being created.
Thanks for pointing me there.
Aha, so that’s it, now I understand the note.
As soon as experimental features is enabled, the attribute is being removed from sensor.hacs and new update sensors are being created.
Thanks for pointing me there.