My Apple Watch is signed in to my iCloud account, but I still can not use the Watch to unlock my Mac. Why?
Every time I interact with the "Allow Apple Watch to unlock the Mac" checkbox in the Security & Privacy section of System Preferences I see this notification.
It doesn't make any sense at all since my Apple Watch is signed in to my iCloud account. I have only one iCloud account and I use it for all my devices, including the Apple Watch, iPhone and Mac. Shared clipboard doesn't work as well (I can not paste on my Mac the items that I have previously copied on my iPhone or iPad). I have macOS 11.2.3 on my MacBook.
Why is this happening and what can I do to fix this?