Watch timer stops at 0:00 witn no notification instead of going to 'done' and vibrating.
Recently my wife's SE watch timer app stopped vibrating at completion. Some other apps still vibrate so it does not appear to be the sounds/haptic settings. Instead of going to 'done' it just hangs at 0:00. Once one timer has done this, the complication on the watch face stops showing countdowns. How can we fix this? My own older watch should be on the same software revision and is working fine.
Apple Watch SE