problem redirecting MTP devices to a 2008 R2

Environment: Windows Server 2008 R2, Citrix XenApp 6.5,  Thin Wyse 5070

Thin Wyse 5070: last Image WIN10_5070_Oct2018.exe, last security patches WIE10_1607_SecurityPatches_December2018

Hello,

when I connect to my shared desktop on the Citrix Server, it is not possible to Redirect a MTP device like a normal phone. On xp and win7 Thin is all possible, also on a Windows 10 Pc with the last updates.... I read in the TecNet forum about a Problem in the Windows 10 build 1607.   

https://social.technet.microsoft.com/Forums/en-US/e4e1ac41-3bb3-4f07-b79d-0e2b172a0df7/is-there-differences-with-the-wmdevicechange-in-version-1607-and-1709?forum=win10itprovirt

Can someone help me?

When Dell release their Image on a new Windows build? (not on 1607) In the Windows 10 1709 build the MTP redirection work again....

Thanks!