sdlxliff Batch Import into Server Based TM

Hi, I have a problems during a batch import phase.

I use the class 'ServerImporter' and the methods: importer.Create(), importer.Upload(AddressOf Me.importer_Uploaded) , importer.Queue()

During the 'continueWaiting' loop I have a message error (code 4096).

Here below the error text:

<FileNotFoundException xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:x="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.datacontract.org/2004/07/System.IO">
<ClassName xmlns="" i:type="x:string">System.IO.FileNotFoundException</ClassName><Message xmlns="" i:type="x:string">C:\ProgramData\SDL\TM Server\20\TEST.docx_it-IT_en-US.sdlxliff</Message><Data xmlns="" i:nil="true" /><InnerException xmlns="" i:nil="true" /><HelpURL xmlns="" i:nil="true" /><StackTraceString xmlns="" i:type="x:string"> at Sdl.LanguagePlatform.TranslationMemoryApi.TranslationMemoryImporter.Import(String fileName)
at Sdl.LanguagePlatform.ServerBasedTranslationMemory.Tasks.ImportTranslationUnitsWorkItem.Execute()
at Sdl.Enterprise2.Platform.Execution.WorkItemSlotEntry.ForwardCall()
at Sdl.Enterprise2.Platform.Execution.WorkItemSlotEntry.RunCallback(Object state)</StackTraceString><RemoteStackTraceString xmlns="" i:nil="true" /><RemoteStackIndex xmlns="" i:type="x:int">0</RemoteStackIndex><ExceptionMethod xmlns="" i:type="x:string">8
Import
Sdl.LanguagePlatform.TranslationMemoryApi, Version=1.6.0.0, Culture=neutral, PublicKeyToken=c28cdb26c445c888
Sdl.LanguagePlatform.TranslationMemoryApi.TranslationMemoryImporter
Void Import(System.String)</ExceptionMethod><HResult xmlns="" i:type="x:int">-2147024894</HResult><Source xmlns="" i:type="x:string">Sdl.LanguagePlatform.TranslationMemoryApi</Source><WatsonBuckets xmlns="" i:nil="true" /><FileNotFound_FileName xmlns="" i:nil="true" /><FileNotFound_FusionLog xmlns="" i:nil="true" /></FileNotFoundException>

Do you never found this problem?

Thanks in advance

Luca