I recently attempted to build a custom mechanical keybaord. The pcb I chose was the KBDFans kdb6x (https://kbdfans.com/collections/60/products/kbdfans-kbd6x-hot-swap-pcb). When I went to flash the board (it doesn't come pre-flashed), QMK wasn't picking up the board. It turns out that windows couldn't recognize the board either. When I went to device manager it was labeled as Unkown USB Device (Device Descriptor Request Failed). Does anyone have any ideas on how to fix it?