Connection Error in CRM for Outlook using non persistan Clients

Hello

We are implementing non persistent Desktops (instant clones) with Windows 10 in a VMware Horizon 7.4 + vSphere 6 Environment. 

When we configure the organization in the Outlook Configuration Tool, we are getting the following error:

Error| Exception : |NativeError:6fc3 HResult 80004005 Message: Die Datei wird zu einem Pfad aufgelöst, der zu lang ist. Maximal zulässig sind 260 Zeichen. [ File name = C:\Users\harle\AppData\Local\Microsoft\MSCRM\Client\MetadataCache-ff278b82-d63f-de11-b6a4-00505699490c.sdf ]|    bei Microsoft.Crm.Application.SMWrappers.CrmSqlCeDatabase.CreateDatabase(Boolean force)

   bei Microsoft.Crm.Application.SMWrappers.CrmSqlCeDatabase.Initialize()

   bei Microsoft.Crm.Application.Outlook.ClientMetadataCache.ClientMetadataSync.GetDataWriteFactoryInstance()

   bei Microsoft.Crm.Application.Outlook.ClientMetadataCache.ClientMetadataSync.get_IsValid()

   bei Microsoft.Crm.Application.Outlook.ClientMetadataCache.ClientDynamicMetadataCache.<>c__DisplayClass1c.<.ctor>b__19()

   bei Microsoft.Crm.Application.Outlook.ClientMetadataCache.DeferredMetadataCacheManager.ExecuteWaitUntilReady(Guid organizationId, Action action)

   bei Microsoft.Crm.Application.Outlook.ClientMetadataCache.ClientDynamicMetadataCache..ctor(IOrganizationContext context, Boolean reloadAsynchronously)

   bei Microsoft.Crm.Application.Outlook.ClientMetadataCache.ClientDynamicMetadataCache.LoadCache(IOrganizationContext context, Boolean unusedHere)

   bei Microsoft.Crm.Metadata.MetadataCache.GetInstance(IOrganizationContext context)

   bei Microsoft.Crm.Application.Outlook.Config.OutlookConfigurator.InitializeMapiStoreForFirstTime()

   bei Microsoft.Crm.Application.Outlook.Config.OutlookConfigurator.Configure(IProgressEventHandler progressEventHandler)

   bei Microsoft.Crm.Application.Outlook.Config.ConfigEngine.Configure(Object stateInfo)

The error in orange says, that the Path to a file is to long. Maximum value is 260 character.

harle is the username. We have another user with a 5 character username. There, the initial configuration worked fine. But after signing off and on again, the error occurs. At my clone (3 character username) and another user with a 3 character username, no error occurs and all works fine. Coincidence or a hint to the real error?

Further Informations:

AppVolume writeable profile disks

Outlook 2016

CRM Client installed in Golden Image (Not in AppVolume AppStack)

CRM 2013 SP 1 (6.1.4.145)

Win 10 Enterprise 

What do you think?

Thanks in advance.

Raffi