According to MacRumors, Apple is investigating an issue with flickering on Apple Watch watch faces, and that's not all.
There are two flaws Apple needs to fix with the Watch
The information has not been confirmed correctly yet in the way that Apple has not officially commented. The Apple blog is said to have gained early access to the problem, which can supposedly affect all Apple Watch models, but essentially the Series 9 and Ultra 2 are most at risk. The bug applies to all watchOS 10 releases, including 10.0.2.
To temporarily fix the problem, Apple says users can disable the Always-On Watch Face. The company is also investigating a problem that could cause the activity rings to randomly change color to pink.
According to the documents from MacRumors, Apple has confirmed that the bug is not in the software and that customers who complain will therefore just have to wait for a new watchOS version to fix the bug. Apple will probably fix this with 10.1, which will be launched on 24 October.