STM32WB changing the server device name in advertisement doesn't work

Using example HeartRateRTOS.

I see that device name is passed to 2 places. One doesn't cause it to change, the other does.

1. Passing new name caused no change, (old name appeared in scan) :

aci_gap_update_adv_data

1. Passing new device name to below, caused it to change:

aci_gap_set_discoverable

a. Why the duplication?

b. Shouldn't changing the advertisement data (1.) be enough to change it?

c. Same question for MAC , only aci_hal_write_config_data changes it, while the MAC is still advertised using aci_gap_update_adv_data.