In SharePoint Online, I have a Person column attached to my list, which is restricted to showing people in a SharePoint group named "All non-admin O365 users". This SharePoint group contains a single Azure Active Directory group named "All-NonAdmin-O365-Users", which itself contains the relevant people.
When I try to use this column to search for people, it cannot find any people that are listed inside the AD Group (with error "No Result Found"). The people I am trying to enter are definitely members of the "All-NonAdmin-O365-Users" AD Group. For comparison, if I allow all users in this field (no restriction), then it can find everyone just fine.
Am I missing something, or does this mean SharePoint Online cannot see the contents of the AD Group?