In my project, button ,charge state check and ACC sensor Interrupt pin, use GPIOTE; when The device is charging, keep this state one night,not unplugging the charger.when i double click on the button,The motor will vibrate,that's ok. but when i double click again, sonmething wrong happend,my device can normal broadcast,but my button, and charge state check ... all functions related to GPIOTE are disabled;then unplugging the charger and plug in the charger, It's normal again. I would like to know what causes GPIOTE failure, but the device will broadcast normally