I have the same issue with my unit as described here. I have disabled Smart Watering, then using two programs, A and B. A is scheduled for every day, B is scheduled for every other day.
The calendar reflects that A will be run every day, the home screen shows that it scheduled to start the next day at 7:15AM, but it never runs, then displays that it will run again tomorrow.
The history seems to accurately show that it never ran at the scheduled time. I am able to run the zones manually with no issue.
MAC address is 44:67:55:40:44:c0