Group different rows into one (same data)

Hi Anonymous 
I though I've had replied back to you with updated solution but for some reason I caanot see my reply. Heree is the sample file https://www.dropbox.com/t/mrD8taPTCHSWO8P2

Please try this solution if it works. However, this is not a perfect situation for a 17M rows data.

Shipments Summary 2 = 
VAR T1 = SUMMARIZE ( Shipments, Shipments[ShipmentId], Shipments[HUUID], "Waypoint", MAX ( Shipments[Waypoints] ) )
VAR T2 = 
    GENERATE ( 
        T1, 
        VAR T3 = CALCULATETABLE ( Shipments )
        VAR T4 = 
            ADDCOLUMNS ( 
                T3, 
                "@Rank", RANKX ( FILTER ( T3, [Waypoints_Actual] <> BLANK ( ) ), [Extraction_date] ) 
            )
        VAR FirstReroute = MAXX ( FILTER ( T4, [@Rank] = 2 ), [Waypoints_actual] )
        VAR SecondReroute = MAXX ( FILTER ( T4, [@Rank] = 1 ), [Waypoints_actual] )
        RETURN  
            ROW ( "1st Route", FirstReroute, "2nd Route", SecondReroute,"3rd Route", FirstReroute )
    )
RETURN
    T2