RTOS/MSP432P401R: SimpleLink RTOS UART examples - UART_write() writes one character then hangs

Part Number: MSP432P401R

Tool/software: TI-RTOS

I'm trying to use the UART module with the latest SimpleLink TI-RTOS release 1.40.01.00
I have an existing example that I ported from tirtos_msp43x_2_20_00_06 to that new release, and noticed that the UART_write hangs after outputting one character.
To check if it's my code or something else, I tried the uartecho example for the new SimpleLink TI-RTOS via Resource Explorer:
->  TI DRIVERS  / uartecho / TI-RTOS / CCS 

There I have the same issue. When connecting a terminal with the right connection settings, it doesn't behave correctly.

I have a black MSP432P401R LaunchPad. It would be good if someone with the new version of the LaunchPad can try out the uartecho example

Code snippet:

    char        input;
    const char  echoPrompt[] = "Echoing characters:\r\n";
    UART_Handle uart;
    UART_Params uartParams;

    /* Call driver init functions */
    GPIO_init();
    UART_init();

    /* Turn on user LED */
    GPIO_write(Board_GPIO_LED0, Board_GPIO_LED_ON);

    /* Create a UART with data processing off. */
    UART_Params_init(&uartParams);
    uartParams.writeDataMode = UART_DATA_BINARY;
    uartParams.readDataMode = UART_DATA_BINARY;
    uartParams.readReturnMode = UART_RETURN_FULL;
    uartParams.readEcho = UART_ECHO_OFF;
    uartParams.baudRate = 115200;

    uart = UART_open(Board_UART0, &uartParams);

    if (uart == NULL) {
        /* UART_open() failed */
        while (1);
    }

    UART_write(uart, echoPrompt, sizeof(echoPrompt)); // here it blocks after sending the first character E

    /* Loop forever echoing */
    while (1) {
        UART_read(uart, &input, 1);
        UART_write(uart, &input, 1);
    }