Thank you very much RoChess I will test this evening and let you know.@vgallego65, that sounds more like another process is locking up the import. MediaInfo is a very known culprit for this. Check into updating the MediaInfo.DLL to the latest version, and see if that solves it. Another option is to disable MediaInfo during import.
It could be something else, but then you will have to provide debug verbosity enabled log files that capture the 'problem', so it allow us to help you find what is causing it.