Unable to push new task servers to computers with .Net 4.7.

Update the Potential Task Servers filter definition ( found in Manage> Filters> Computer Filters> Task Service Filters> Potential Task Servers ) to the following:

-- get current NS version
DECLARE @majorVersion float
DECLARE @version varchar(40)
DECLARE @pos int
declare @thisNS uniqueidentifier
SET @version = (SELECT TOP 1 Version FROM DBSchema ORDER BY Id DESC)
-- position of second dot
SET @pos = CHARINDEX( '.', @version,  CHARINDEX( '.', @version ) + 1 )
SET @majorVersion = CAST( SUBSTRING( @version, 1, @pos - 1 ) AS float )
SET @thisNS = (select Value from ServerSettingGuids where [Name] = 'OwnerNSGuid')

-- main select
SELECT DISTINCT vc.[Guid]
FROM [dbo].[vComputerIdentification] vc
 JOIN [dbo].[Inv_AeX_AC_Client_Agent] invca
 ON
  invca.[_ResourceGuid] = vc.[Guid]
  AND
  invca.[Agent Name] = 'Altiris Agent'
 JOIN [dbo].[Inv_AeX_AC_NT_Services] svcs
 ON
  svcs.[_ResourceGuid] = vc.[Guid]
  AND
  UPPER( svcs.[Name] ) = 'W3SVC'
 JOIN [dbo].[Inv_AeX_AC_Identification] invi
 ON
  invi.[_ResourceGuid] = vc.[Guid]  
 JOIN [dbo].[Inv_AeX_AC_NetFrameworkVersions] invnfv
 ON
  invnfv.[_ResourceGuid] = vc.[Guid]
WHERE
 -- ensure the machine is local
 vc.[IsLocal] = 1
 AND
 -- ensure the machine is managed
 vc.[IsManaged] = 1
 AND
 -- ensure that the machine is not already a task service computer
 vc.[Guid] NOT IN
 (
  SELECT vps.[ResourceGuid]
  FROM [dbo].[vActiveTaskServiceComputers] vps
 )
 AND
 -- see if this machine has proper OS
 (
  -- Win32 OR Win64
  vc.[System Type] LIKE 'Win[36]_'
  AND
  (
   -- Windows 7, Windows 7 SP1
   (vc.[OS Name] LIKE 'Windows 7%' AND (vc.[OS Revision] = '' OR vc.[OS Revision] like '%Service Pack 1'))
   OR
   -- Windows 8
   (vc.[OS Name] LIKE '%Windows 8%')
   OR
   -- Windows Server 2008, Windows Server 2008 SP2
   (vc.[OS Name] LIKE '%2008%' AND vc.[OS Name] NOT LIKE '%Core%' AND vc.[OS Name] NOT LIKE '%R2%' AND (vc.[OS Revision] = '' OR vc.[OS Revision] like '%Service Pack 2'))
   OR
   -- Windows Server 2008 R2, Windows Server 2008 R2 SP1
   (vc.[OS Name] LIKE '%2008 R2%' AND vc.[OS Name] NOT LIKE '%Core%' AND (vc.[OS Revision] = '' OR vc.[OS Revision] like '%Service Pack 1'))
   OR
   -- Windows Server 2012
   (vc.[OS Name] LIKE '%2012%')
   OR
   -- Windows 10
   (vc.[OS Name] LIKE '%Windows 10%')
   OR
   -- Windows Server 2016
   (vc.[OS Name] LIKE '%2016%')
  )
 )
 AND
 -- ensure that the machine has proper NET. Framework version
 (invnfv.[NETVersion] LIKE '4.5.[^0]%' OR invnfv.[NETVersion] LIKE '4.[6,7]%')
 AND
 -- ensure the agent is the proper version
 CAST( SUBSTRING( invca.[Product Version], 1, CHARINDEX( '.', invca.[Product Version],  CHARINDEX( '.', invca.[Product Version] ) + 1 ) - 1 ) AS float ) = @majorVersion
UNION
SELECT cm.[ResourceGuid]
FROM [dbo].[CollectionMembership] cm
JOIN [vRM_Computer_Item] item ON  item.[Guid]=cm.ResourceGuid AND item.[OwnerNSGuid] = @thisNS  -- Analog vComputer.IsLocal
LEFT JOIN vActiveTaskServiceComputers actTS on actTS.ResourceGuid = cm.ResourceGuid
WHERE cm.[CollectionGuid] = 'ECDBDB8D-7386-482E-96A6-AE5E5FB94AF0' AND actTS.ResourceGuid IS NULL