Empty start menu with Citrix Profile Manager after upgrading to XenApp 7.15 LTSR CU3

After upgrading from XenApp version 7.11 to 7.15 LTSR CU3 the start menu for all Users stays empty. There are no programms or other shortcuts left which were added from the User. As workaround there is a registry empty which will solve the problem. update -> HKEY_CURRENT_USER -> Software\Microsoft\Windows\CurrentVersion\ImmersiveShell\StateStore -> ResetCache -> REG_DWORD -> 00000001 Afterwards your start menu will roam just like before without any issues.