Thats an interesting observation as I have been thinking exactly the same.
I used to get notifications as soon as the light rain hit the sky, since v94 i have not seen one notification.
This morning my VP2 is reporting .6 mm in the last 3 hours but on my WF zero.
I am watching the light rain hit the unit and nothing is appearing in data. All other functions appear to be working ok.
@dsj any thoughts?. Not seen any other users mention same yet but the roll out has only just happened.
One to watch maybe
Just notice this post on same subject