I've noticed the screen on my S7 does not turn off during phone calls since the Nougat update. This is especially annoying when I have my phone in the otterbox case with the kickstand on my desk while the samsung earphones are plugged in. I push the power button to turn the screen off and the screen just turns right back on. This happens if I'm holding my phone and walking around as well with the earphones plugged in. I've tried covering up the sensors as well and then pushing the power button, but the same thing keeps happening. This issue did not exist prior to the Nougat update.