How to show open tabs on other devices on Mac Safari?

I want to show open tabs on other devices that share the same Apple and iCloud account, but for some reasons there is no open tab on Mac Safari when I click the top-right icon (the icon of two tabs overriding). On my iPhone and iPad I can access the tabs opened on my Mac, but the other direction is not true. How can I open the tabs opened on iOS devices on Mac or maybe is it just a bug? --- ### UPDATE I found out that sometimes the tabs appear properly whereas other times they don't. ### UPDATE 2 This might be a bug, but I think 60~80% of the time the tabs don't appear. I upgraded to macOS 11.1 but the problem still persists. Any workaround would be appreciated.