Thanks for the response Ray. There are checks next to ‘Use Master’ and ‘Ignore Rain’ for this station. To test I am toggling the ‘Normally Open’ box under weather settings to make the system think the rain sensor has been tripped. When I manually activate the station it turns green and I expect the valve for this station is physically open but Master remains red and the master valve remains closed. I did try to uncheck and recheck the ‘Use Master’ and ‘Ignore Rain’ boxes but that didn’t fix the problem. This station DOES activate the Master valve when rain is not detected.
This worked with previous firmware so I’m thinking it is in software. But I’m not ruling out that it could be user error! I didn’t mention in my original post, hardware version is 2.1.