@kat4876543: it’s not a glitch - it’s something Apple has done intentionally. The logic is that if you’re wearing your watch, then you don’t need the alerts on your phone as well. So when you watch is locked - sound alerts go to your phone and not your watch. When your watch is unlocked, sound alerts go to the watch and NOT the phone, regardless of the notification settings.
Apple created this update a few iOS’s ago and it is a terrible idea. Better to give the users the ability to choose.
Topic:
App & System Services
SubTopic:
Core OS
Tags: