I've had my Iro for about 6 months now and twice I've found that it just stops watering (second time was either today or Tuesday, hard to tell). The app says that it's Online (even after a refresh) and even says "Watering" when it's supposed to, but it doesn't actually turn on the sprinklers. The history shows no issues, and it thinks that it executed all of the programs as expected. If I start a manual cycle, it again thinks that it's starts properly, but the sprinklers don't come on.
In both cases, I went to the box outside, power-cycled the Iro and reseated it, and it started working again. I believe that the lights on the Iro looked the same before and after - power light was green and wifi light was flashing green. I don't recall whether the status light was on or not.
The outdoor box is a really tight fit for the Iro, so I don't that there's a loose connection between the front and back panels. Was there a firmware update this week that may have put it into a weird state? It's disconcerting because I feel like I need to check on it to make sure it's doing what it says it is.