I just a had brand new Rachio 3 and Rainbird WR2 installed and I am getting the same exact notices you mentioned in this post… Rain sensor will activate as it should because it has started raining but then a few minutes later it will update showing rain sensor deactivated and then a few minutes later activated again and back and forth 2-3 times… did you ever resolve this on your system and if so what what was it?
