Pin allocation for 54L15 GPIO

Hello, I am currently developing a testing software to verify whether all the pins of my module have been properly connected. I configured pin 1.03 as a high level in the software, but it did not output. After my attempts, all the pins except 1.03 could output correctly. I would like to know the reason for this. Thank you. Here is my code.

int main(void)
{

    while (1)
    {
        nrf_gpio_cfg_output((32+3));
        nrf_gpio_pin_set((32+3));
        k_sleep(K_MSEC(500));
        nrf_gpio_pin_clear((32+3));
        k_sleep(K_MSEC(500));
    }
}
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