I can enter if but not execute statements inside

Projects Programming
20

I know but look

String xddd = "/enciende_luz_dormitorio";
    Serial.println(respuesta.length());
    Serial.println(xddd.length());

13:39:26.050 -> /enciende_luz_dormitorio

13:39:27.077 -> 25

13:39:27.077 -> 24

Maybe one character invisible?