I have a program running on NUCLEO-L4P5ZG board. The USB device VCOM runs fine on STM32CubeMX v6.5.0 (STM32CubeIDE v1.9.0). It was broken since STM32CubeMX v6.6.0 (IDE v1.10.0). The problem still exists in STM32CubeMX v6.7.0 (IDE v1.11.2). My workaro...