Nordic HRM App keeps reporting data when HR sensor is removed ??!!

[david cy]

Hi experts, I'd like to know if it's normal when the HR sensor is removed from ear, but the HRM app keeps reporting the same heart rate data w/ the last value , is it possible to stop it at final and not repeating it ?

thank you

[david cy]

What I'm using is Nordic toolbox HRM application and the problem occurs at either iOS or Android. The BLE in my product is nRF51822. thank you.