I was used normal mode USB CDC with Host Only -> and in middleware ( USB CDC) And it worked no matter what and good for beginners. After Update That files ware missed with same settings-up for new project. i was in middle in middle of the project for normal USB cdc. if STM programmers need to do that they have to it like new menu item and add new descriptor method or some what then users can understand and now we struck.. if some one updated his project i don't know what happened.. now i'm at middle cannot go forward..
