Remove duplicates by prioritizing rows based on another column

Hello again - here is the same query as the last response with your source data plugged in.  Note - I am not able to download your files (blocker on my end), so I converted the image of your original table to an actual table.  

The only difference between the last query and this one is the value of the Source step.  Everything else is the same.  In case you are not already doing so, I recommend you copy this script, paste it into a blank query and then view the output.

BEFORE:

AFTER:

SCRIPT:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("vZVPa4MwGIe/i+ci778k5ihsDEYZwjZ2KEUctWPQw2D7/uxN5oyhxZMaQjAa8jzmF+PhUBAQAoK04MWRb/fdqb98fv/0LQtR+XU6F7sCpAQsw1DtvNUobAS8XnuPxGIgFATnOdzU2tR7bcPopvvo9VnsHXdL84imPLcgz4C5wYNqyqtW56GZ8vzq6xnz0wm1OIfWpijD2r5075cBDmuFOcB1pd0IJ14SPpNsevMJXNaHx5gTvEpwMwtHRgsuh5tb8Pr1+QGB2WHoPT7dGUBk0UmAtIrlv31239TaMs9ttOWglEFlGyhmULMNFDKo3QbK46YiQrSJP/8tL5vvuKtjvoNAtZEAjgJ6ssWsBwG/kQAkAWsoCQjMCNgg4BEzAbH/AvZaYDi+rgWcHQWAIVIHgfzfrPzjLw==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Ladeliste = _t, Datum = _t, #"Auftragsnr." = _t, #"NVE-Nr." = _t, #"LNM-Nr." = _t, #"LHM-Typ" = _t, Index = _t, Page001 = _t, DeleteRowIndex = _t]),
    grouped = Table.Group(
        Source, 
        // Column(s) containing the values from which you'd like duplicates removed.  
        {"NVE-Nr."},
        {
            { "Table", // Name of the new column.
                each 
                //---------------------------------------------------------
                // Option 1: Sort descending, then select the first result.
                //---------------------------------------------------------
                // This will work if there is a maximum of only two rows per NVE-Nr.
                //let varTable = Table.Sort ( _, {{"LHM-Nr.", Order.Descending}}) in
                //Table.FirstN ( varTable, 1 ),
                //---------------------------------------------------------
                // Option 2: Select the last LHM-Hr for each NVE-Nr.
                //---------------------------------------------------------
                // This will work if the row to keep always appears last in the group.
                Table.LastN ( _, 1 ),                
                type table
            }
        }
    ),
    expand = Table.ExpandTableColumn ( 
        grouped, 
        "Table",                                  // Expand the tables in this column
        List.Difference (                         // New column names
            Table.ColumnNames (                   // are the column names 
                Table.Combine ( grouped[Table] )  // in the nested tables 
            ), 
            Table.ColumnNames ( grouped )         // that do not appear in the grouped table.
        ) 
    )

in
    expand