Serial.println works only inside of loop()

Question

My code

void setup() {
  Serial.begin(115200);
  while (!Serial) {}
  Serial.println("Setup");
}

int t = 0;

void loop() {
  Serial.println("Loop1");
  if (t==0){
    t = 1;
    Serial.println("Loop2");
  }
}

All that is printed is Loop1 (indefinetly).

Edit: added !serial as suggested by @aMike

Any idea?

Answer 1

Add a short delay after establishing the serial connection:

void setup() {
  Serial.begin(115200);
  while (!Serial);
  delay(500); // this will ensure displaying your content on the serial monitor
Serial.println("Setup");
}