After flashing a BLE Eddystone Project, the Device Name of a previous flashed Sample is displayed in various BLE scanner Apps

[JonasGel]

I flashed a nrf52dk - nRF52832 board with a sample project (peripheral_hr) and the name is displayed correctly in the nrf connect app and other BLE discover apps.

After that, when I flash a BLE Eddystone project (st_ble_sensor, bluetooth/eddystone or bluetooth/beacon ) the devicename is displayed correctly only in the nRF Connect app, with other BLE discovery apps the name of the old project is displayed (Zephyr Heartrate Sensor). What am I doing wrong? (Visual Code Studio + nRF SDK 1.9.1)

[JonasGel]

For others with this Problem: I solved it by manualy deleting build/zephyr/zephyr.hex before building or pristine building my Project 

[Hung Bui]

Hi Jonas, 
If it's displayed correct in one app (central) , but not on other app (central) I suspect that could have something to do with the phone cached the information about the device including device name. One way to test this is to change the address of the node and see if you still see the same device name.