The debug build variant for MKRWAN1310 boards have the debugging logger configured on USART2. However, the GPIO pins used by the USART2 peripheral conflict with LPUART1, i.e., the AT command interface port. This should probably be fixed by configuring the debugging logger to use the LPUART1 peripheral instead, but we need to make sure that the debugging messages do not interfere with AT communication.
The debug build variant for MKRWAN1310 boards have the debugging logger configured on USART2. However, the GPIO pins used by the USART2 peripheral conflict with LPUART1, i.e., the AT command interface port. This should probably be fixed by configuring the debugging logger to use the LPUART1 peripheral instead, but we need to make sure that the debugging messages do not interfere with AT communication.