TouchID not working while iPhone plugged in
I am using an iPhone 6 16GB GSM with the Apple charger that came with the phone in the box. I have recently noticed that for some reason TouchID isn't working when my phone is plugged in. When I unplug the phone, it starts working again immediately. The phone doesn't even seem to be recognizing that I put my finger on the sensor (doesn't display "try again" at the bottom of the screen). Has anybody else experienced this or does anyone know how to fix this?
iPhone 6, iOS 8