MoH in TAR files go to wrong playlist


I zipped 5 MoH wav files into a unique TAR file with less than 30MB, then I created a new MoH Class and selected this new MoH Playlist and press Upload button. When system uploads tar file, everything goes OK but wav files appear on Default Playlist instead of on selected Playlist. I did it several times with same result, only way to upload wav files to created playlist was uploading one by one. This is OK if you have two or three files but if there are more file it become tedious. Thanks.