Manual cycle and soak not working for tree zone

I have a zone for tree bubblers that has been configured with manual cycle and soak ever since I received my Rachio. The schedule is for 90 minutes of watering, with 15 minutes of water and 30 minutes of soak. It’s always worked in the past, but this morning it ran for 90 minutes non-stop with no soak time. The schedule hasn’t been touched in a while, so I’m not sure what caused the change.