Thread: Why SERCOM1_USART_Write function cannot be used twice in a row?

For a PIC32CM processor, I am trying to use the UART write function twice in a row. The project is built from Harmony3.

SERCOM1_USART_Write(char_array1, sizeof(char_array1));
SERCOM1_USART_Write(char_array2, sizeof(char_array2));

When the code is executed, only string1 is displayed.

I introduced various delay methods in between the two writes without success.

Does anyone have a solution or workaround?

Thanks.