I am a long term Outlook 365 user on a new Mac running Big Sur. In old outlook, I have multiple contact lists, but when I switch to new outlook, they are GONE. In addition, the icon menu bar is also GONE in new Outlook and I cannot find anyway to turn it on. All other functions seem to be working, and IF I switch back to old outlook, my contact lists are still in place. Would like to permanently migrate to new outlook, but cannot do if I cannot get this resolved. Any help will be appreciated.