Manual watering did not stop when timed

Just installed and had issue with manual watering not stopping when time was up. Used the IOS app to manually water, set for 10 minutes on a single zone. I left and came back two hours later and it was still running. Had to manually start again on same zone to get stop option since app thought it had stopped.

Makes me worry about running automatically if it won’t stop! Is this common?

In US (Ohio) with Gen 1, 8 zone