AD query -- trouble with group.member list

Question

Hello,
I'm attempting to create an AD query that filters for certain groups and all the members of those groups. I start with the groups table and filter to get the groups of interest. No problems so far.
When I expand the group column to pick up the "member" column, I get group.member and the cell values have changed from "Record" to "List."  When I expand "List" I can tell I'm at the right level of granularity,
because the number of rows has increased, and the group names are repeated for the number of members in a group. The problem is that the group.member field now shows "Record" again. I can't expand on it. And when I click on any of the "Record"
links, I can see the individual's name.
Any ideas on how I'm to get the name to show up in the full result set rather than needing to click on the "Record" link? Searching for "Power Query" with "record" has been...unhelpful (expectedly so).
Thanks

Answer 1

Gil,
Thanks for the reply. I notice that in my query, displayName is null for all the records returned. I have been able to get the group name information from the sAMAccountName field, although I wonder if that is what is causing the issue when I attempt to
expand. 
Here are more details on my query stages:
The first stage is with the following query (I left the "GL" filter visible since by itself it's not confidential):
let
    Source = ActiveDirectory.Domains(<domain>),
    <domain> = Source{[Domain=<domain>]}[#"Object Categories"],
    group1 = <domain>{[Category="group"]}[Objects],
    #"Expand securityPrincipal" = Table.ExpandRecordColumn(group1, "securityPrincipal", {"sAMAccountName"}, {"securityPrincipal.sAMAccountName"}),
    #"Filtered Rows" = Table.SelectRows(#"Expand securityPrincipal", each Text.StartsWith([securityPrincipal.sAMAccountName], "GL"))
in
    #"Filtered Rows"
The second stage (1st screenshot) is immediately after I expand the group column and select "member." I show the bottom view, too, which shows the three records associated with this list (the correct number of users in that AD group).
When I "expand" group.member, it changes from List to Record and there is now one row for each user in a group. However, when I go to pick the displayName column from group.member, it gives me the message "No columns were found." Yet,
when I select the group.member value, I can see in the view below that there is a displayName. (See 2nd screenshot.) Note that I filtered the records in the third screenshot to just a single group -- 3 records.
Does this additional information help isolate what I might be experiencing?
Here is the query to match the final screenshot:
let
    Source = ActiveDirectory.Domains(<domain>),
    <domain> = Source{[Domain=<domain>]}[#"Object Categories"],
    group1 = <domain>{[Category="group"]}[Objects],
    #"Expand securityPrincipal" = Table.ExpandRecordColumn(group1, "securityPrincipal", {"sAMAccountName"}, {"securityPrincipal.sAMAccountName"}),
    #"Filtered Rows" = Table.SelectRows(#"Expand securityPrincipal", each Text.StartsWith([securityPrincipal.sAMAccountName], "GL")),
    #"Expand group" = Table.ExpandRecordColumn(#"Filtered Rows", "group", {"member"}, {"group.member"}),
    #"Expand group.member" = Table.ExpandListColumn(#"Expand group", "group.member"),
    #"Expand top" = Table.ExpandRecordColumn(#"Expand group.member", "top", {"name"}, {"top.name"}),
    #"Removed Columns" = Table.RemoveColumns(#"Expand top",{"msExchIMRecipient", "ciscoEcsbuUMAttributes", "posixGroup", "top.name", "msExchBaseClass",
"msExchCustomAttributes", "mailRecipient"})
in
    #"Removed Columns"
Scott C.