My Active 2 keeps tracking my heart rate even doe i truned it off

[MathiasF1do]

My Active 2 keeps tracking my heart rate even doe i turned it off and yes i turned it off on stress too
it doesn't say it in the app but i can see the green light turns on sometimes 

[Rach34]

Hahaha, smart. System runs in the back ground. Switch off and restart.