Problem by flashing the ESP32-PICO-D4 Micro-32 via a MK22FN512 as Gateway between USB and UART

Question

I have a print with the ESP32-PICO-D4 Micro-32 and the MK22FN512. The MK22FN512 is connected with the LPUART0 to the ESP32-module (UART0). So I have to handle the USB-packag