Pb Keyboard.println () which not send the carriage return

Hello,

I use the lib HID to emulate a keyboard.
My problem is that the Arduino refuses to send "Return" at the end of the line . All text passed to it properly and I changed the lib to have a QWERTY keyboard. I tried with the original lib, same result.

I do not understand, someone would have an idea ?

My code is simply a Keyboard.println ();

Thank you .

I have no experience of the library, but perhaps you could explicitly send a Carriage Return. How do you know that the CR is not being sent by the println() ?