We are looking into this and appreciate everyone’s feedback regarding the problem. It is clear many users are having the same problem. The OSPi/OSBo release for the Unified firmware is currently in “beta” but we did not expect a bug of this magnitude.
We will let everyone know once this has been fixed however in the meantime you may switch to using Dan’s Python program or Richard Zimmerman’s sprinklers_pi while we get the Unified firmware fixed.
Thank you for your patience.