Apple Watch loses alarm and timer sounds

Same thing keeps happening with my Apple Watch Ultra 1st gen. It's a very annoying issue, and not what you expect when you pay the premium for an Apple product. I use timers when cooking food, this issue has led to food being overcooked as the timer finishes, but I don't hear anything, only if I look at my watch do I then see that it has finished. And same with alarms, luckily I woke up before the alarm anyway. All very well that we can temporarily fix the issue by restarting the watch, but Apple should investigate and come up with a permanent fix.