With the official launch of the new Apple Watch product, the first batch of users who bought it have also complained about encountering some problems on the Internet. , such as Apple Watch Series 8 and Apple Watch Ultra's microphones may inexplicably lose response after a period of time, causing applications that rely on microphone to pop up an error message and stop working.

(Picture from: MacRumors forum netizens)
The information summarized by the official support community of Apple and the MacRumors forum shows that this bug will not only cause such error notifications to pop up in the Noise application, but also affect the normal operation of system functions such as Siri, dictation, hand washing detection, etc.
Specifically, the Noise app will not be able to detect volume levels when the Apple Watch is in a water lock state, or when using a microphone/speaker.

What's worse is that netizen @2259 said that he has tried to restart the Apple Watch and updated the system software - including Watch OS on the watch side and iOS 16.0.1 on the iPhone - the problem will still reappear after a period of time.
According to this point, this problem is more likely to be related to software bugs. However, many users have encountered problems with both watches and doubt whether this is a very coincidental hardware flaw.
Thankfully, Apple has realized this problem and is expected to launch a fix patch soon. At the same time, the company is also quite guaranteed in terms of after-sales return and exchange policies.