I am using STM32L4 Discovery board, I have generated USB VCP code from cube MX and configured as CDC class in Device mode. I am facing an issue with Receive buffer, I don't understand the issue. If host send data more than 8 bytes to device, my code get hangs. Is there any Limitation in RX buffer. Could Some one suggest how to overcome this issue. I have attached the reference document which used to generate code in CUBEMX.