RAK3172-T
we got our new assembled boards, and there seems to be something wrong, took a time to debug but it looks like that rak3172-t is stuck in delay function.
void setup()
{
Serial1.begin(115200); // Initialize serial port
delay(1000);
Serial1.println(" example");
Serial1.println("===================");
if i remove this delay i get print message, but if the delay is there the code is stuck here forever. board selected in arduino is wis duo rak3172-t board.