I started a thread stating the above and apparently I am not the only one to encounter this issue. My Apple Watch is the version 10 and I certainly didn't expect to have this problem. My older Apple Watch did have this same problem initially but after a few updated it stated working. I only tried the consumer beta hoping the issue was resolved. One of the posts today hoped the next update would fix it and I informed him I had installed the beta and it still wasn't working.
Hello @NicevilleSteve, thank you for your post. For help with Unlock with Apple Watch, please post in the Apple Support Community. The Apple Developer Forums are for questions about APIs and features intended specifically for developers.
Apple sent me an email because of what I had posted in the Support Community and that was the reason for my post. Apple shouldn't have released a version that needed my post. Instead I needed to start this subject on the support site... Apple or Apple AI must monitor the Community and should support answering the issues there if a fix is available instead of the way that was found to make this feature work!